{"product_id":"hammer-strength-select-back-extension-remanufactured","title":"Hammer Strength Select Back Extension (Remanufactured)","description":"\u003cstyle\u003e\n  .bs-wrap *{box-sizing:border-box;margin:0;padding:0}\n  .bs-wrap{font-family:'Barlow',sans-serif;color:#1a1a1a;max-width:700px}\n  .bs-badge{display:inline-block;background:#1a1a1a;color:#f0ebe3;font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;padding:4px 10px;border-radius:3px;margin-bottom:16px}\n  .bs-desc{font-size:15px;line-height:1.8;color:#444;margin-bottom:24px}\n  .bs-desc strong{color:#1a1a1a;font-weight:500}\n  .bs-divider{border:none;border-top:1px solid #e5e5e5;margin:24px 0}\n  .bs-section-label{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#999;font-weight:500;margin-bottom:12px}\n  .bs-muscles{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}\n  .bs-muscle-tag{font-size:12px;font-weight:500;padding:5px 13px;border-radius:20px;background:#fff7ed;color:#92400e;border:1px solid #fcd9a0}\n  .bs-muscle-tag.sec{background:#f5f5f5;color:#666;border-color:#e0e0e0}\n  .bs-specs-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:24px}\n  .bs-spec-card{background:#f7f7f5;border-radius:8px;padding:14px 16px}\n  .bs-spec-label{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#999;margin-bottom:4px}\n  .bs-spec-val{font-family:'Barlow Condensed',sans-serif;font-size:20px;font-weight:600;color:#1a1a1a}\n  .bs-spec-sub{font-size:12px;color:#888;margin-top:3px}\n  .bs-feat{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-top:1px solid #efefef}\n  .bs-feat:last-child{border-bottom:1px solid #efefef}\n  .bs-feat-icon{width:30px;height:30px;border-radius:50%;background:#fff0f0;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}\n  .bs-feat-icon svg{width:14px;height:14px;stroke:#dc2626;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}\n  .bs-feat-name{font-size:14px;font-weight:500;color:#1a1a1a;margin-bottom:3px}\n  .bs-feat-desc{font-size:13px;color:#666;line-height:1.6}\n  .bs-span2{grid-column:span 2}\n\u003c\/style\u003e\n\u003cdiv class=\"bs-wrap\"\u003e\n\u003cp class=\"bs-desc\"\u003eThe Hammer Strength Select Back Extension strengthens the posterior chain with \u003cstrong\u003ea five-position adjustable start, ergonomically shaped lumbar pad aligned to the axis of rotation, two non-slip foot platforms, and a 295 lb selectorized stack\u003c\/strong\u003e — the lumbar pad's alignment to the rotation axis is the critical fit specification: it positions the user so the lower back extends through the correct arc rather than pivoting from the wrong point, which is what causes lumbar stress on improperly set back extension machines. The five-position start accommodates different torso lengths and range-of-motion preferences, and the two foot platform positions further expand the fit range across users of different leg lengths.\u003c\/p\u003e\n\u003cp class=\"bs-desc\"\u003eSmooth selectorized resistance covers rehabilitation through advanced lower back loading. \u003cstrong\u003e295 lb stack on a 560 lb commercial frame\u003c\/strong\u003e, 46\" × 40\" footprint, 300 lb max user. Remanufactured.\u003c\/p\u003e\n\u003chr class=\"bs-divider\"\u003e\n\u003cp class=\"bs-section-label\"\u003ePrimary muscles targeted\u003c\/p\u003e\n\u003cdiv class=\"bs-muscles\" style=\"margin-bottom: 10px;\"\u003e\n\u003cspan class=\"bs-muscle-tag\"\u003eErector Spinae\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag\"\u003eGluteus Maximus\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag\"\u003eHamstrings\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"bs-section-label\"\u003eSecondary muscles\u003c\/p\u003e\n\u003cdiv class=\"bs-muscles\" style=\"margin-bottom: 0;\"\u003e\n\u003cspan class=\"bs-muscle-tag sec\"\u003eMultifidus\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag sec\"\u003eAdductors\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag sec\"\u003eCore Stabilizers\u003c\/span\u003e\n\u003c\/div\u003e\n\u003chr class=\"bs-divider\"\u003e\n\u003cp class=\"bs-section-label\"\u003eKey features\u003c\/p\u003e\n\u003cdiv class=\"bs-feat\"\u003e\n\u003cdiv class=\"bs-feat-icon\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cline x1=\"4\" y1=\"20\" x2=\"20\" y2=\"20\"\u003e\u003c\/line\u003e\u003cline x1=\"4\" y1=\"20\" x2=\"4\" y2=\"6\"\u003e\u003c\/line\u003e\u003cline x1=\"4\" y1=\"20\" x2=\"18\" y2=\"6\"\u003e\u003c\/line\u003e\u003cpath d=\"M4 13 a9 9 0 0 1 7 -7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003eLumbar Pad Aligned to Rotation Axis — Correct Extension Arc\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eThe ergonomically shaped lumbar pad is positioned in relation to the machine's rotation axis — ensuring the lower back extends through the correct arc rather than pivoting from the wrong point. Incorrect axis alignment on back extension machines is the primary cause of lumbar stress during the exercise, making this the most important fit variable on the machine.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-feat\"\u003e\n\u003cdiv class=\"bs-feat-icon\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cline x1=\"4\" y1=\"6\" x2=\"14\" y2=\"6\"\u003e\u003c\/line\u003e\u003ccircle cx=\"18\" cy=\"6\" r=\"2\"\u003e\u003c\/circle\u003e\u003cline x1=\"4\" y1=\"12\" x2=\"20\" y2=\"12\"\u003e\u003c\/line\u003e\u003cline x1=\"4\" y1=\"18\" x2=\"14\" y2=\"18\"\u003e\u003c\/line\u003e\u003ccircle cx=\"18\" cy=\"18\" r=\"2\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003e5-Position Start · 2 Foot Platforms · 295 lb Stack\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eFive start positions accommodate different torso lengths and range-of-motion preferences. Two non-slip foot platforms expand the fit range across users of different leg lengths. 295 lb selectorized stack covers posterior chain training from rehabilitation through advanced progressive loading.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"bs-divider\"\u003e\n\u003cp class=\"bs-section-label\"\u003eSpecifications\u003c\/p\u003e\n\u003cdiv class=\"bs-specs-grid\"\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eDimensions (L × W × H)\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e46\" × 40\" × 55\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eMachine Weight\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e560 lb\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eWeight Stack\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e295 lb\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003eSelectorized · 5-position start · 300 lb max user\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eCondition\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003eRemanufactured\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003eHammer Strength Select · \u003ca href=\"https:\/\/ctxhomegyms.com\/pages\/what-is-refurbished\" style=\"color: #888; text-decoration: underline;\"\u003eView condition details\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card bs-span2\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eDesign\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003eAxis-Aligned Pad · 5-Position · 295 lb · 560 lb\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003eLumbar pad aligned to rotation axis · 5-position start · 2 non-slip foot platforms · 295 lb selectorized · 300 lb max user · 560 lb commercial frame\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ============================================================\nSEO FIELDS — paste these into Shopify's Search Engine Listing section\n============================================================\n\nPage title (max 60 chars):\nHammer Strength Select Back Extension | Remfg\n\nMeta description (max 160 chars):\nRemanufactured Hammer Strength Select Back Extension. Axis-aligned lumbar pad, 5-position start, 295 lb stack, 560 lb commercial posterior chain machine, 46×40\".\n\nTags (comma separated):\nHammer Strength Select back extension, Select back extension remanufactured, axis aligned lumbar pad, selectorized back extension, 5 position back extension, Hammer Strength Select, 295lb back extension, commercial posterior chain machine, lower back machine, remanufactured back extension\n\n============================================================ --\u003e","brand":"Hammer Strength","offers":[{"title":"Default Title","offer_id":48760462508272,"sku":"HS-SEL-BCK-EXT","price":1995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0510\/0981\/4682\/files\/image2-062-complete-background-delete-white-2048_b5edc1b5-4466-49a5-b1d3-d6f91a55f93d.png?v=1787183090","url":"https:\/\/www.buildagym.com\/es\/products\/hammer-strength-select-back-extension-remanufactured","provider":"Build A Gym","version":"1.0","type":"link"}