{"product_id":"sterling-silver-yellow-gold-fill-large-spring-rings","title":"Sterling Silver Large Spring Rings 12mm \u0026 15mm","description":"\u003cp\u003e\u003cstrong\u003eSold by the piece.\u003c\/strong\u003e Spring rings are the most popular type of clasp used for necklace chains — secure, reliable, and easy to use. These \u003cstrong\u003elarge sterling silver spring ring clasps\u003c\/strong\u003e are round hollow tubes with a tiny coil spring inside and an attached jump ring for connecting to one end of a chain.\u003c\/p\u003e\u003cp\u003eA movable, spring-tensioned bolt features a lever that you push back with your fingernail to open the clasp. The bolt is held firmly closed by the internal spring inside the tubing. Opening and closing a spring ring requires two hands. These large clasps include an \u003cstrong\u003eopen top jump ring\u003c\/strong\u003e for easy attachment to a chain end.\u003c\/p\u003e\u003cp\u003eThe open jump ring is often twisted to a closed position during attachment — however, this method is not secure. \u003cstrong\u003eDo not use torch heat to solder the jump ring closed, as the internal spring will be damaged by heat.\u003c\/strong\u003e The correct method is to close the jump ring using a laser welder or tack welder.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLarge sterling silver spring ring clasps\u003c\/li\u003e\n\u003cli\u003eRound hollow tube construction with internal coil spring\u003c\/li\u003e\n\u003cli\u003eSpring-tensioned bolt with lever tab opens with fingernail pressure\u003c\/li\u003e\n\u003cli\u003eOpen top jump ring included for chain attachment\u003c\/li\u003e\n\u003cli\u003eSecure, two-handed operation keeps clasp reliably closed\u003c\/li\u003e\n\u003cli\u003eJump ring must be closed by laser weld or tack weld — not torch soldering\u003c\/li\u003e\n\u003cli\u003eSold individually, by the piece\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSterling Silver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClasp Type\u003c\/th\u003e\n\u003ctd\u003eSpring Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eSold by the piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eAvailable Options\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eRing Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e364-115\u003c\/td\u003e\n\u003ctd\u003e15.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"WR Cobb","offers":[{"title":"Sterling Silver \/ 15.0mm","offer_id":47807132238038,"sku":"364-115","price":27.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/sterling-silver-large-spring-rings-12mm-and-15mm-otto-frei-1.jpg?v=1719955739","url":"https:\/\/www.ottofrei.com\/ja\/products\/sterling-silver-yellow-gold-fill-large-spring-rings","provider":"Otto Frei","version":"1.0","type":"link"}