Finish your jewelry projects with a professional touch using Adabele’s 304 stainless steel end caps and cord ends, the high-performance standard for DIY jewelry making. These essential findings provide a secure and polished termination point for various stringing materials, including leather cord, rubber, silk, and multi-strand designs. Crafted from genuine 304-grade surgical steel, these components are non-rusting, hypoallergenic and nickel-free, making them the safest choice for sensitive skin. Unlike plated brass or zinc alternatives, 304 steel is naturally non-tarnish, rust-proof, and waterproof. This ensures your necklaces and bracelets maintain their mirror-like high-polish finish even with daily wear and exposure to the elements. Whether you are using fold-over cord ends for a low-profile finish or glue-in barrel end caps for a sleek, modern look, these findings offer unmatched durability. Available in various internal diameters, these end caps are the secret to boutique-quality assembly. While you are shopping for end caps and cord ends, please check out our other stainless steel jewelry making supplies on Amazon such as clasps, bail clip, chain and chain extender, bracelets, jump rings and split rings, earring hook and backs, earring post and hoop, rhinestone rondelle beads, beads and spacers, beading wires, bead caps, end bar, connector, links, bead tips, crimp covers, head pins and eye pins, bead cages, wire protector, eyelets, rivets, brads, grommets, jewelry settings, cabochon setting, and much more. (50 sets) Material: 304 grade stainless steel is safe, surgical grade, waterproof, hypoallergenic, tarnish-free, durable metal; Suitable for daily wear, outdoor, shower, gym and sports; Highly resistant to tarnish, corrosion, sweat, heat, water, smudge; 304 stainless steel is widely used in medical equipment, household products, and food industry; It is an excellent material for use in jewelry due to its low risk for allergic reaction; It's generally considered hypoallergenic for Most people, and great for making non-rusting everyday wear jewelry and crafts; Designed for 2.7mm to 3mm (0.11 inch to 0.12 inch) cord; Total Length: about 32mm (1.26 inch); Clasp about 12mm (0.47 inch); Outer endcap diameter: about 3.9mm (0.16 inch); Inner hole/cavity diameter: about 3mm (0.12 inch); Hole/Cavity depth: 9mm (0.35 inch); Open jump ring: 5mm (~ 0.2 inch) The cord endcap is designed to be used with 2.7mm to 3mm (0.11 inch to 0.12 inch) cord; if a cord is smaller than 2.7mm, you may use glue to fill the space inside the endcap, if a cord is 3mm, you may use a tool to push the cord into the endcap; Note: Please confirm your cord's actual diameter before ordering, as standard market sizing can be inconsistent. Thanks A material and quality assurance certificate of these non tarnish shower safe 304 stainless steel products issued by Adabele, U.S. A. is included; these Items are packaged in Adabele's trademarked bag UPC 840287419313 ASIN B0B845X336 Color Stainless Steel Gray Brand Name Adabele Item Weight 0.5 Ounces Manufacturer Adabele Material Type Stainless Steel Warranty Description Adabele offers a limited 30-day warranty against defects in workmanship and materials of this product. Please check adabele's return policy for more details. Thank you.