Uxcell Plastic Handle Jeweler Filing Triangle Diamond Needle Files (10 Piece), Black Product Name : Triangle Needle Files;Material : Diamond, Metal, Plastic Shank Diameter : 4mm / 0.16";Blade Width : 7mm/0.28" Total Length : 164mm /6.5";Color : Black, Dark Gray Weight : 162g Package Content : 10 x Needle Files