Wide Application: great for DIY your special and unique jewelry, excellent size for suspending small items from delicate earrings, necklaces, chokers, bracelets, pendants, anklets, key chain, etc. Easy to Use: the jump rings are open style jump rings, they are not soldered shut, can be easily opened and closed, perfect for making chainmail armor, try out new weaves, make spectacular jewelry items or something else entirely!. Size Details: the dimensions of the rings are 4/25 inch(4mm), 1/5 inch(5mm), 6/25 inch(6mm), 5/16 inch(8mm), 9/25inch(9mm), 2/5inch(10mm) outside diameter. The wire is 18AWG/19SWG or 0.04inch(1mm) in diameter. Clear round container box: 8cm/3.1" in diameter, 2cm/0.7" high. Value Pack: package includes a box of about 1000pcs metal jump rings in 6 sizes--4mm(400 pieces), 5mm(270 pieces), 6mm(150 pieces), 8mm(80 pieces), 9mm(60 pieces), 10mm(40 pieces); 6 mixed sizes meet your various jewelry making needs. High Quality Material: our open jump rings are made of 304 stainless steel, harder than iron and alloy, corrosion, tarnish, and rust-resistant, lightweight, sturdy and durable for a long time use. Recommended to open with a plier.Batteries required: No. Warranty Description: This model not for children 6 and younger. Finish types: Rust-resistant. Is Discontinued By Manufacturer: No. Best Sellers Rank: #6,024 in Arts, Crafts & Sewing. Customer Reviews: 4.6 4.6 out of 5 stars 1,394 ratings 4.6 out of 5 stars. Item model number: 4336832887. Country of Origin: China. : B01LY7OV6P. Manufacturer: PH PandaHall. Item Weight: 4.2 ounces. Product Dimensions: 5.2 x 4.61 x 1.1 inches. Finish Type: Rust-resistant. Number of Pieces: 400, 40. Brand: PH PandaHall. Style: Art Deco. Color: Stainless Steel Color-1000 Pcs. Material: Stainless Steel.