uxcell 4 Pcs Magnetic U4 Tip Spanner Screw Driver Bit Tool Product Name : Spanner Screwdriver Bit;Tip Size : U4 Hex Shank Diameter : 6.4mm/0.25";Each Total Length : 25mm/ 0.98" Color : Silver Tone, Green;Material : Metal Total Weight : 23g Package Content : 4 x Spanner Screwdriver Bit