Steel: 31CrV3 38-42 HRC Nickel plating Size: 21 mm A: 130 mm d: 16 mm Length: 325 mm The balloon wrench is used for assembly/dismantling of threaded connections when replacing car wheels. The spatula located on the reverse side of the wrench is used for dismantling the wheel and also as a mounting tool. The A offset and the thin but sturdy end part are designed for using the wrench with any type of wheel rims. The wrench undergoes a complete heat treatment along its entire length.