ApplicationFor removing and installing oxygen sensor sockets Package Includes: Vacuum switch socket - 3/8\" drive x 7/8\" x 80mm Oxygen sensor wrench socket - 3/8\" drive 7/8\" x 50mm Oxygen sensor wrench - 3/8\" x 78mm x 50mmSpecificationsSocket Size 1: 1/2\" Drive x 7/8\" x 50mm Socket Size 2: 3/8\" Drive x 7/8\" x 30mm Socket Size 3: 1/2\" Drive x 7/8\" x 80mm Material: Stainless SteelNotice* Professional installation is highly recommended (No Instruction Included) * For any needs please contact us Box Color: The color of the box is random