uxcell 4mm x 160mm Red Handle Lapidary Jeweler Round Diamond Needle Files 4 Pcs Product Name : Needle Files Set;Material : Metal, Plastic Shank Diameter : 3.8mm / 0.149";Total Length : 160mm / 6.299" Frosting Surface Length : 50mm / 1.968";Color : Silver Tone, Red Weight : 97g Package Content : 1 x Triangle File1 x Round File1 x Half Round File1 x Flat Diamond File