Mini Diamond Needle File Set 40 Pieces Total length: 140 mm. soft non-slip rubber handles provide an excellent grip and can effectively reduce the pressure on your hand during use. Holds a firm hold and is comfortable even when wet. Versatile use: the file set can be used for wood, ceramic, metal, glass, stone, repairs, metal parts, nail repairs and anything else, suitable for fine grinding models and jewels. size:3 x 140mm Material: diamond colour: silver+red Package Contents: 40 x Diamond Needle Files Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.