POLISI Durable Bicycle Bike Repair Tool Bone Shape Torque Wrench with 10 Hexagon Holes 10 in one, the 10 hexagon holes size from 6mm to 15mm. Material: Galvanized Steel Product Dimensions(L x W x H): 93 x 21 x 18mm Product Weight: 60g High quality zinc alloy, durable and anti-rust