925 Sterling Silver Clasps: the necklace charm holder clasps are made of 925 sterling silver, high quality, comfortable to wear, keep shining. Good quality, best choice for gift. The necklace connectors ensure an elegant appearance but also makes you feel comfortable to wear.3 Sizes Pinch Bails: package includes 12pcs S925 pendant clasps in 3 sizes--small: 6.5x2.5x3.5mm, medium: 7.5x4.5x5mm, large: 12x3.5x5mm; each size 4pcs. The sterling silver clasps fit pendants with small to medium thickness of the hole area, meet your diverse needs.Easy to Use: open the bails and apply a small amount of pressure to close the bails and push the prongs into the pre-drilled holes in the pendant, and the clip on the top makes it easy attach on metal chains or cords.Snap On Bail: you can turn cross-drilled beads into beautiful pendants using these quality pendant snap on bails. Pinch bails can secure the beads or pendants, small but delicate, suitable for your daily use.Wide Applications: the pinch bails are great for DIY your special and unique jewelry; can be used to attach beads, crystals gemstones and pendants to DIY necklaces, bracelets, costume and room decorations; can aslo be used to DIY gifts to mom, friends on Mother's Day, birthday, Valentine's Day, Thanksgiving Day, etc.