{"product_id":"quantum-selectorized-back-extension-lower-back-machine","title":"Quantum Selectorized Back Extension | Lower Back Machine","description":"\u003c!-- JSON-LD Product Schema for Google Rich Results --\u003e\n\u003cdiv class=\"cff-listing\"\u003e\n\u003ch1\u003eQUANTUM SELECTORIZED BACK EXTENSION\u003c\/h1\u003e\n\u003cdiv style=\"background: linear-gradient(135deg, #d92323 0%, #a51c1c 100%); color: white; padding: 15px 20px; border-radius: 8px; margin: 20px 0;\"\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 0.95em; opacity: 0.9;\"\u003e📍 Lancaster, PA 17601 | 🚛 SHIPPING + DELIVERY AVAILABLE\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003e💪 QUANTUM – SELECTORIZED LOWER BACK MACHINE\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.1em; line-height: 1.7;\"\u003eQuantum Selectorized Back Extension – Commercial lower back and posterior chain machine. \u003cstrong\u003eSeated design with adjustable chest pad and foot plate for safe, controlled spinal erector and glute work.\u003c\/strong\u003e Silver frame with maroon pads.\u003c\/p\u003e\n\u003cp style=\"font-size: 1.1em; line-height: 1.7;\"\u003e\u003cstrong\u003eNew runs $2,500-$3,200+ – Grab this commercial unit and save thousands.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e⚙ KEY FEATURES:\u003c\/h3\u003e\n\u003cul style=\"line-height: 1.8; list-style: none; padding-left: 0;\"\u003e\n\u003cli\u003e✔ \u003cstrong\u003eSeated Design:\u003c\/strong\u003e Safer than 45° hyperextensions – locks you in, isolates lower back + glutes\u003c\/li\u003e\n\u003cli\u003e✔ \u003cstrong\u003eAdjustable Chest Pad:\u003c\/strong\u003e Multiple start positions for different torso lengths and range of motion\u003c\/li\u003e\n\u003cli\u003e✔ \u003cstrong\u003eAdjustable Foot Plate:\u003c\/strong\u003e Pop-pin foot plate locks in position for proper leverage and stability\u003c\/li\u003e\n\u003cli\u003e✔ \u003cstrong\u003eSelectorized Weight Stack:\u003c\/strong\u003e Quick pin-select weight changes – no plate loading needed\u003c\/li\u003e\n\u003cli\u003e✔ \u003cstrong\u003eCommercial Grade Build:\u003c\/strong\u003e Heavy steel frame, commercial cam + pulleys – built for clinics + gyms\u003c\/li\u003e\n\u003cli\u003e✔ \u003cstrong\u003eCompact Footprint:\u003c\/strong\u003e Dedicated lower back machine without the space of a roman chair\u003c\/li\u003e\n\u003cli\u003e✔ \u003cstrong\u003eSmooth Motion:\u003c\/strong\u003e Commercial bearings + coated cable – consistent resistance curve\u003c\/li\u003e\n\u003cli\u003e✔ \u003cstrong\u003ePosterior Chain Focus:\u003c\/strong\u003e Targets spinal erectors, glutes, hamstrings safely – rehab approved\u003c\/li\u003e\n\u003cli\u003e✔ \u003cstrong\u003eControlled ROM:\u003c\/strong\u003e Cam-driven path limits hyperextension risk – perfect for beginners + PT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📏 TECHNICAL SPECIFICATIONS:\u003c\/h3\u003e\n\u003cdiv style=\"background: #f8f9fa; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; margin-bottom: 15px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #d92323; color: white;\"\u003e\n\u003cth colspan=\"4\" style=\"padding: 12px; text-align: left;\"\u003eQUANTUM BACK EXTENSION SPECS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eQuantum\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eSelectorized Commercial Back Extension \/ Lower Back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003ePosition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\" colspan=\"3\"\u003eSeated – posterior chain isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eWeight Stack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eSelectorized – 10-200+ lbs\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eResistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eCam + cable system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eChest Pad\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\" colspan=\"3\"\u003eAdjustable – multiple start positions for ROM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eFoot Plate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\" colspan=\"3\"\u003ePop-pin adjustable for leverage + user height\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eTarget Muscles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\" colspan=\"3\"\u003eSpinal erectors, glutes, hamstrings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eFootprint (L×W×H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\" colspan=\"3\"\u003eApprox 48\" L × 36\" W × 60\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eUnit Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\" colspan=\"3\"\u003e~400 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eFrame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\" colspan=\"3\"\u003eHeavy-duty commercial steel – silver frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eUpholstery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\" colspan=\"3\"\u003eCommercial grade vinyl – maroon pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003e🏋 CONDITION:\u003c\/h3\u003e\n\u003cdiv style=\"background: #f8f9fa; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; margin-bottom: 15px;\"\u003e\n\u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cstrong\u003eGood used commercial condition.\u003c\/strong\u003e Pulled from operating facility. Maroon upholstery is solid with normal wear. Silver frame shows light cosmetic scuffs from gym use – see photo.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cstrong\u003eCable, pulleys, cam, and weight stack operate smoothly.\u003c\/strong\u003e Selector pin included. Ready to train.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eOnly 1 available.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003e💳 PAYMENT:\u003c\/h3\u003e\n\u003cdiv style=\"background: #fff3cd; border: 2px solid #ffc107; border-radius: 8px; padding: 15px; margin-bottom: 15px;\"\u003e\n\u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cstrong\u003eCash, Credit Card, PayPal, Venmo, Apple Pay\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eNO HOLDS – If it’s up, we’ve got it.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin-top: 30px;\"\u003ePickup, Shipping \u0026amp; Store Info\u003c\/h3\u003e\n\u003cdiv style=\"background: #e7f3ff; border: 1px solid #b3d7ff; padding: 20px; border-radius: 8px;\"\u003e\n\u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cstrong\u003e📍 Lancaster, PA 17601 | QUANTUM BACK EXTENSION\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cstrong\u003e✓ Local pickup available\u003c\/strong\u003e – bring truck\/trailer + help. Unit weighs ~400 lbs.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cstrong\u003e🚛 Shipping + delivery available\u003c\/strong\u003e – freight quote based on location. Ships on pallet.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eAfter we receive your purchase, allow \u003cstrong\u003e5-10 business days for scheduling and servicing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Quantum","offers":[{"title":"In Store Pickup","offer_id":48899641671915,"sku":"QTM-BE-PU","price":500.0,"currency_code":"USD","in_stock":true},{"title":"Commercial Dock Delivery","offer_id":48899641704683,"sku":"QTM-BE-DCK","price":1249.0,"currency_code":"USD","in_stock":true},{"title":"Commercial Liftgate Delivery","offer_id":48899641737451,"sku":"QTM-BE-LFTGT","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"Residential Delivery Curbside","offer_id":48899641770219,"sku":"QTM-BE-RSD","price":1349.0,"currency_code":"USD","in_stock":true},{"title":"Residential Delivery Inside Garage","offer_id":48899641802987,"sku":"QTM-BE-GRG","price":1449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2063\/2201\/files\/quantum-back-extension.jpg?v=1781879930","url":"https:\/\/cffstrengthequipment.com\/products\/quantum-selectorized-back-extension-lower-back-machine","provider":"CFF STRENGTH EQUIPMENT (CFF FIT)","version":"1.0","type":"link"}