?Specifications?: Valve core remover length stowed 4.57 in / 11.62 cm, deployed 8.28 in / 21.03 cm. Dual size1/4" and 5/16". ?Features?: Made of solid brass, durable, able to be opened and closed in quickly and conveniently. The metal knob is all anti-slip design. ?Applications?: This Valve Core Removal Tool Kit is applicable for refrigeration equipment. With SAE 1/4'' and 5/16'' port, it is compatible with R22, R12, R124A, R410, R32 A/C air condition system, etc. ?Installation?: Insert the core grabber tool into the inner valve, then you can control the core. The advantage is that you can remove and install the valve cores conveniently without stopping the machine or release the refrigerant. ?Package Contents?: You can get 1 × R134A valve core remover, 1 × R410 R32 brass adapter, 20 × valve cores and 10 × brass nuts. Please check and make sure it is screwing tightly at the top along the removal shaft. Also contact us if any accessory missing.