Fitment Range: 45-52mm/1.77"-2.05" Material: Made of metal for strength and durability, use for a long life, not easy to break. Usage: The hook wrench is designed to drive wrench head screws, threaded rings and shafts. Hanging Hole: The wrenches can be hung on the wall through the hole at the bottom, which also makes it portable and storage. Package Included: 1 x Motorcycle Hook Wrench