Colors: Titanium / Gold / Rainbow / Burnt Blue / Black Available length:10,15,20,25,30,35,40,45,50,55,60mm (length does not include head height) Head Diameter:11mm/0.43" Head Height:5.5mm/0.22" Pitch:1.0mm Drive type: Internal hexagon wrench: Use 5mm Hex allen key External hexagon wrench: Use 8mm Hex allen key