Housweety 200pcs Crimp Fasteners Leather Cord Ends Caps Necklace Clasp Jewelry Parts 4x8mm Material:Alloy(Lead and nickel free) Size: Approx:4x8mm Hole size:2.3mm Color:dull silver tone(not silver plated) Quantity:200pcs Great for Jewelry DIY,making necklaces and bracelets.