2 Colors Available: package includes 540 pieces jewelry wire guards in 2 colors--golden and silver, each color 270 pieces; about 4mm wide, 5mm long, 1mm thick, hole: 0.5mm. You can choose or match them according to your preference.Brass Wire Guards: made of brass, colorfast, corrosion, rust-resistant, shiny and durable; wire protectors are designed to protect wire against wear from clasps and other sharp-edged components.Easy to Use: simply put your crimp on your tiger tail first then feed your wire up side of the guardian, then down the other side and back through your crimps. Pull your crimps up and squash as normal, compatible with various beading wires and threads.Horseshoe Design: similar to bullion or French wire with a rigid, pre-curved horseshoe shape to cradle and protect your bead cord from fraying, wire guardians are the perfect finishing end for the use with tiger tail or other jewelry beading wire.Wide Applications: these U-shape cable protectors can be applied to cover the knots on the end of earrings, bracelets and necklaces; and can be also used for making keychains, suncatchers, handbag accessories, etc.