ITEM NAME:10pcs Magnetic Alloy Round Ball Magnet Clasp 10mm DIY Necklace Bracelet U3R2 10pcs Magnetic Alloy Round Ball Magnet Clasp 10mm DIY Necklace Bracelet U3R2 Manual sewing accessory Packaging fashionable accessory Customizing jewelry accessory Material: Alloy + Magnet Size: approx 10 mm.Material: Alloy + Magnet. Quantity: 10. Weight: about 37 g.