Measurement: These snap clasps about 15.5mm long, 10mm wide, 5mm thick, hole: 1.5mm, can be used with many necklaces and bracelets. Please check the size information brfore purchase.Package Included: Contains 20pcs bracelet snap clasps totally, enough quantity suit for your daily use, and you can share these snap clasps with your friends or family.Convenient to Use: These clasps allow you to put on your jewelry with one hand and eliminate the frustration of using a lobster clasp or a tension clasp, like when you are already running late and cannot get your jewelry on alone.Wide Application: Great accessories for repairing or making necklaces, bracelets necklaces, anklets and other DIY handmade craft jewelry.Safe And Corrosion: Our snap clasps are made of stainless steel, safe and non-toxic, and will not rust, ensure a long lasting finish, which requires minimal maintenance. Suitable for any people.