Features: Car air conditioning valve core R12 R134a air conditioning accessories. With valve core remover tool, useful tool kit for car air-conditioning replacement and maintenance. Suitable for car air conditioning replacement and maintenance, replacement refrigerant valve core leak. 40pcs Car air conditioning Accessories Kit, including 39 value cores and 1 remover installer tool. All in box for easy storage and carrying. Fit for most cars, truck, ATV, motorcycles, bicycles, electric cars, balance cars, tricycles, etc. Great for mechanic and A/C repair shops. .