Note: Items or packaging may vary slightly from photos due to manufacturers ongoing improvements Description: Condition: 100% Brand New Use Instruction: 1. Open the radiator cap. Before open it, make sure it’s cooling state. 2. Choose applicable cap adaptor for vehicle. 3. Fasten the radiator opening meanwhile check if the gasket is applicable. 4. Insert the joint into adaptor. 5. Take out the hand held pump, pressurize to about 15Psi-20Psi .