{"product_id":"guardian-positive-locking-nut-only","title":"Gold \u0026 Platinum 6.1mm Guardian Positive Locking Earring Backs","description":"\u003cp\u003eA positive locking earring back replaces a friction clutch when a finished earring needs to stay put on the ear until it is deliberately released.\u003c\/p\u003e\n\u003cp\u003eThese Original Guardian backs from WR Cobb, also known as Guardian Ear Nuts or Safety Earring Backs, use \u003cstrong\u003estraight, ridged trigger tabs\u003c\/strong\u003e that lock onto a matching post groove and release only when both side tabs are pressed at the same time. Each clutch measures 6.1 mm (0.240\") across and fits a 0.89 mm (0.035\") post. They are sold individually, so order two for a pair, in 14K yellow, 14K white, 18K yellow and 18K white gold and in platinum, all made in the USA from 100% recycled precious metal.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOriginal Guardian design with straight, ridged trigger tabs\u003c\/li\u003e\n\u003cli\u003ePositive-lock mechanism engages the post groove and releases only when both tabs are pressed\u003c\/li\u003e\n\u003cli\u003eMade in the USA using 100% recycled gold and platinum\u003c\/li\u003e\n\u003cli\u003eISO 14001:2015 and ISO 9001:2015 certified manufacturing\u003c\/li\u003e\n\u003cli\u003eSold individually; order two for a pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eMetal\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e210-302\u003c\/td\u003e\n\u003ctd\u003e14K Yellow Gold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e211-302\u003c\/td\u003e\n\u003ctd\u003e14K White Gold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e21B-302\u003c\/td\u003e\n\u003ctd\u003ePlatinum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e21C-302\u003c\/td\u003e\n\u003ctd\u003e18K Yellow Gold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e21E-302\u003c\/td\u003e\n\u003ctd\u003e18K White Gold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for use with Guardian straight posts (0.035\" x 0.395\"): \u003cstrong\u003e20B-302POMAIN\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFor thicker posts (1.06 mm \/ 0.042\"), use Guardian II backs (7.1 mm outside diameter): \u003cstrong\u003e210-304\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClean clutches with alcohol only; avoid polishing compounds, rouge, ultrasonic solutions, or other chemicals\u003c\/li\u003e\n\u003cli\u003eExcess heat, debris, or chemical residue can impair the internal locking mechanism\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended; confirm the post groove matches Guardian clutch specifications\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WR Cobb","offers":[{"title":"Platinum","offer_id":47807059001558,"sku":"21B-302","price":87.91,"currency_code":"USD","in_stock":true},{"title":"18K Yellow","offer_id":47807058968790,"sku":"21C-302","price":86.75,"currency_code":"USD","in_stock":true},{"title":"18K White","offer_id":47807059034326,"sku":"21E-302","price":77.44,"currency_code":"USD","in_stock":true},{"title":"14K Yellow","offer_id":47551319802070,"sku":"210-302","price":56.43,"currency_code":"USD","in_stock":true},{"title":"14K White","offer_id":47807059067094,"sku":"211-302","price":53.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/14ky14kw18ky18kw-and-platinum-6-1mm-guardian-positive-locking-earring-backs-otto-frei.jpg?v=1719959128","url":"https:\/\/www.ottofrei.com\/it\/products\/guardian-positive-locking-nut-only","provider":"Otto Frei","version":"1.0","type":"link"}