{"product_id":"stopper-contesub-u1-special-per-roller-inverter","title":"U1 Special Stopper","description":"\u003ch2\u003eU1 Special Stopper for Roller Spearguns\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eU1 Special Stopper\u003c\/strong\u003e is a round-base accessory specifically designed for installation on \u003cstrong\u003eroller speargun\u003c\/strong\u003e muzzles. Made from lightened stainless steel, it ensures strength and stability during underwater use.\u003c\/p\u003e\n\n\u003ch3\u003eMaterials and Finishes\u003c\/h3\u003e\n\u003cp\u003eThe stopper body is laser-cut and undergoes mechanical and chemical treatments designed to eliminate sharp edges, improving safety and ensuring a uniform finish. The upper edges are rounded and carefully polished to prevent premature wear of textile wishbones, preserving their integrity and service life.\u003c\/p\u003e\n\n\u003ch3\u003eDesign and Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe shape and dimensions have been engineered to allow use with any standard shaft available on the spearfishing market. The front section features two tips that make it easier to route the shooting line needed to securely lock the shaft. The symmetrical design allows the line wrap to be made from either the right or left side, offering maximum installation versatility.\u003c\/p\u003e\n\n\u003ch3\u003eMounting and Installation\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBase with two mounting holes\u003c\/li\u003e\n  \u003cli\u003eMounted using the stainless steel self-tapping screws included in the package\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eExternal dimensions: length 91 mm (including 77 mm of contact surface on the barrel), width 17 mm, height 15 mm\u003c\/li\u003e\n  \u003cli\u003eUsable internal section dimensions: width 14 mm, height 13 mm\u003c\/li\u003e\n  \u003cli\u003eWeight: 16 grams\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Contesub","offers":[{"title":"Default Title","offer_id":56926314758489,"sku":"AR007","price":8.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/6732\/1945\/files\/Stopper_U1_Special.png?v=1782070789","url":"https:\/\/deepbluesub.com\/en\/products\/contesub-u1-special-stopper-for-roller-inverter","provider":"DEEP BLUE - Freediving \u0026 Spearfishing","version":"1.0","type":"link"}