Specification Material: 55# steel + plastic Suitable diameter: Gripper head size: 22 - 32 mm Small hook hook head: 8-22 mm Size: Key size: 28 / (11") Small key: 21.5 / (8.5") Scope of delivery includes: 2 x Adjustable Keys 1 x Key Adapter 1 x Magnetic Hex Socket Notice 1. Please avoid barbaric operation. 2. Please DO NOT use the key as a hammer or hit the key with a hammer. 3. The magic key set is NOT a toy, keep it away from children.