{"product_id":"backrest-upright-adjustment-knob","title":"Backrest Upright Adjustment Knob","description":"\u003cp\u003eThe backrest upright adjustment knob controls the vertical height position of your backrest. Loosen it, slide your backrest to the height that matches your lumbar curve, then tighten to lock it in place.\u003c\/p\u003e\n\n\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cp\u003eReplacing a lost, stripped, or damaged knob, or keeping a spare on hand for touring.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Hand Installation\u003c\/strong\u003e — unscrew the old knob, thread on the new one, hand-tighten\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Polymer Construction\u003c\/strong\u003e — built to hold up to daily adjustments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine OEM Part\u003c\/strong\u003e — fits Stealth and ErgoLab chairs with adjustable backrest height\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBackrest Height Lock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-Grade Polymer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMidnight Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard Stealth\/ErgoLab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eTip: Hand-tighten only. Over-tightening can strip the threads or crack the knob.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOne (1) Backrest Upright Adjustment Knob\u003c\/li\u003e\n\u003cli\u003eCompatible with all Stealth \u0026amp; ErgoLab chairs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Stealth Chairs","offers":[{"title":"Default Title","offer_id":50620950675649,"sku":"2014-rblk","price":26.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0848\/4251\/2577\/files\/Backrest_Upright_adjustment_Knob.png?v=1789751738","url":"https:\/\/www.summitsourceusa.com\/es\/products\/backrest-upright-adjustment-knob","provider":"SUMMIT SOURCE USA LLC","version":"1.0","type":"link"}