Features 1、STEPPED WRENCH SET: Ratchet wrench stepped adapter kit for most radiator valves, fittings, plugs, tank joints, etc. 2、NON SLIP HANDLE: The wrench handle has non slip protrusions for a comfortable grip for low effort operation. 3、CARBON STEEL: Made of excellent carbon steel material, which is wear resistant, and not easy to rust or deform. 4、5 STEP SIZES: The stepped wrench has 5 different step sizes, suitable for different needs, with strong practicability. 5、STABLE STRUCTURE: The wrench and handle are firmly installed, with stable structure, greatly improving work efficiency. Specification Item Type: Radiator Wrench Set Material: ABS + Carbon Steel Color: Silver + Black Uses: Suitable for most radiator valves, joints, plugs, tank joints, etc. Wrench Step Size: Approx. 10mm / 0.39in 11mm / 0.43in 12.5mm / 0.49in 16mm / 0.63in 21mm / 0.83in (1mm error due to manual measurement) Package List 1 x Step Adapter 1 x Ratchet Wrench