{"product_id":"prx-knee-keeper","title":"PRx Knee Keeper","description":"\u003cstyle\u003e\n.fs-section { margin: 40px 0; font-family: Arial, sans-serif; }\n.fs-section h2 { font-size: 28px; margin-bottom: 10px; color: #8B0000; }\n.fs-section h3 { font-size: 22px; margin-bottom: 10px; color: #222; }\n.fs-section p { font-size: 16px; line-height: 1.6; color: #333; }\n.fs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 15px; margin-top: 15px; }\n.fs-card { background: #f7f7f7; padding: 15px; border-radius: 6px; border: 1px solid #ececec; }\n.fs-highlight { background: #fafafa; padding: 20px; border-left: 5px solid #8B0000; margin-top: 20px; }\n.fs-list { columns: 2; margin-top: 10px; padding-left: 20px; }\n.fs-ratio-table { width: 100%; border-collapse: collapse; margin-top: 15px; font-size: 15px; }\n.fs-ratio-table th, .fs-ratio-table td { border: 1px solid #ddd; padding: 12px; text-align: left; }\n.fs-ratio-table th { background: #8B0000; color: #fff; }\n.fs-cta { background: #fafafa; padding: 20px; border-left: 5px solid #8B0000; margin-top: 30px; }\n.fs-cta a { color: #8B0000; font-weight: bold; text-decoration: underline; }\n@media(max-width:768px){ .fs-list { columns: 1; } .fs-section h2 { font-size: 24px; } }\n\u003c\/style\u003e\n\u003cdiv class=\"fs-section\"\u003e\n\u003ch2\u003eAnchor Yourself for Harder Seated Pulls\u003c\/h2\u003e\n\u003cp\u003eA seated row is only as strong as what is holding you down. The PRx Knee Keeper pins to your rack, works with the PRx Axis Pad, and braces your legs so the weight goes through your back instead of lifting you off the seat.\u003c\/p\u003e\n\u003cp\u003eA 5\" diameter black vinyl pad takes the pressure, a 4-hole adjustment pattern gets the height right for any size athlete, and two pins let you reposition it mid-workout. It also earns a second job as a foot holder for crunches and a backrest for Axis Pad leg curl and extension work.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fs-section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"fs-grid\"\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eLocks You In\u003c\/strong\u003e\u003cbr\u003eBraces your knees so heavy seated pulls stay seated and every rep loads the target muscle.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003e4-Hole Adjustment\u003c\/strong\u003e\u003cbr\u003eFine height adjustment that dials in the fit for athletes of any size.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003e2-Pin Attachment\u003c\/strong\u003e\u003cbr\u003eTwo pins in, two pins out, so you can reposition between sets without breaking rhythm.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eComfortable Vinyl Pad\u003c\/strong\u003e\u003cbr\u003eA 5\" diameter, 9\" long black vinyl pad that holds you firmly without pinching.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eUHMW Construction\u003c\/strong\u003e\u003cbr\u003eUltra-high molecular weight polyethylene resists the wear that comes from constant pin adjustment.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eDoubles as a Foot Holder\u003c\/strong\u003e\u003cbr\u003eUse it to anchor your feet for weighted crunches and abdominal work.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eBackrest for Leg Work\u003c\/strong\u003e\u003cbr\u003eProvides a backrest when running the Axis Pad Leg Curl \/ Leg Extension attachment.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eBlack Powder Coat\u003c\/strong\u003e\u003cbr\u003eA durable finish that keeps its look through years of loading and repositioning.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fs-section\"\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eEveryone who has done a heavy seated cable row or lat pulldown at home knows the failure mode: you load the stack properly and the weight starts lifting you instead of the other way around. A knee brace is the fix, and it is one of the cheapest ways to make an existing pulley setup meaningfully more useful.\u003c\/p\u003e\n\u003cp\u003eThe Knee Keeper pins to your rack and works alongside the PRx Axis Pad. The 4-hole pattern lets you set the pad exactly where your thighs sit, which matters more than it sounds; too high and it cuts in, too low and it does nothing. Once it is set, two pins hold it, and the 5\" diameter vinyl pad spreads the pressure across your legs comfortably enough to forget about it and just pull.\u003c\/p\u003e\n\u003cp\u003eConstruction is UHMW with a black powder coat finish, and at 13 lb and 6.25\" x 21\" x 12.5\" it is easy to move and easy to store. The standalone design is what makes it better value than a fixed brace: flip your position and it anchors your feet for crunches, or serves as a backrest during Axis Pad leg curl and extension work.\u003c\/p\u003e\n\u003cp\u003eTwo things to confirm before ordering. It fits 3\" x 3\" uprights with 5\/8\" holes and 4\" spacing, and it is not compatible with the PRx Elite or Prime pulley systems for lat pulldown. If your 3x3 upright does not have 4\" side hole spacing, PRx publishes a modified install for the Axis Pad attachment.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fs-section\"\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"fs-ratio-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e13 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Dimensions\u003c\/td\u003e\n\u003ctd\u003e6.25\" x 21\" x 12.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack powder coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad Dimensions\u003c\/td\u003e\n\u003ctd\u003e5\" diameter, 9\" length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad Material\u003c\/td\u003e\n\u003ctd\u003eBlack vinyl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eUltra-High Molecular Weight Polyethylene (UHMW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment\u003c\/td\u003e\n\u003ctd\u003e4-hole design, 2-pin attachment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e3\" x 3\" uprights with 5\/8\" holes and 4\" spacing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNot Compatible\u003c\/td\u003e\n\u003ctd\u003ePRx Elite and Prime pulley systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fs-cta\"\u003e\n\u003cp style=\"margin:0 0 8px;font-size:18px;\"\u003e\u003cstrong\u003eReady to Build Your Dream Gym?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;\"\u003eOur fitness experts are here to help you design the perfect setup for your space and goals. \u003ca href=\"https:\/\/fitnesssupply.com\/pages\/consultation-request\"\u003eSchedule your free consultation today\u003c\/a\u003e and let us bring your vision to life.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"PRx Performance","offers":[{"title":"Default Title","offer_id":62856948547743,"sku":"BL2234B","price":194.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/0871\/0559\/files\/3D9A7905-Editdone.jpg?v=1788211255","url":"https:\/\/fitnesssupply.com\/es\/products\/prx-knee-keeper","provider":"Fitness Supply","version":"1.0","type":"link"}