Q81C High Hardness 3/8 In Drive Universal Thief w/ w/o Wrench 10-19mm Adjustable Hex Professional Tool 2/3 PcsOOTDTs: There are 2 kinds, one is extension and slot, the other is slot and key extension, choice according to your needs. The universal socket wrench easily handles high torque, strong and correctly gripping nuts and bolts in an adjustable size range, 10-19mm. Made of high quality cr-v, high hardness, durable, strong. Replacement of sockets from 3/8" to 3/4" and 10 to 19mm. Customized instantly to grip most nuts, bolts, hooks, delay bolts, bolt heads and more. Specification: Material: cr-vExtension Length: 5cm/1.97inKey Length: 20.5cm/8.07inSocket Length: 3.7cm/1.46inPackage Included: 1x Universal Socket SetNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.