Made of Stainless Steel and Magnets, durable, not fade and not easy to rust. 8x4mm / 0.31x0.16inch; 10x5mm / 0.4x0.2inch; 12x6mm / 0.47x0.24inch 3 sizes for your choice. Shiny Argent, Shiny Golden, Shiny Black and Shiny Rose Gold, 4 colors for your choice. 5 Pcs/Set. Tiny jewelry clasps, easy to sew in and convenient to use. The jewelry clasp/closure is rectangle shaped, smooth touches, the back of the clasp is with , makes it fits the wrist perfectly. Great for leather cord, leather straps, bracelet making, bead woven projects, sewing, craft, clothing, bag, scrapbooking, and more. Specification: Material: Stainless Steel & MagnetsSize:Approx.8x4mm / 0.31x0.16inchApprox.10x5mm / 0.4x0.2inchApprox.12x6mm / 0.47x0.24inch Package Includes: 5 Pcs Jewelry Clasp Note: Please allow slightly difference due to manua l measurement.Color may be slightly different since different . Thanks!