The O-ring has good sealing and resilience. The valve core has a wide range of applicability and is suitable for automotive maintenance.

Package includes: 270PCS O-rings and 40PCS air conditioning valve cores, with valve core disassembly tools.
Easy to store: O-rings and valve cores are placed separately in boxes for convenient use.
Material: The O-ring is made of high quality nitrile butadiene rubber (NBR), which has good resilience and sealing properties.
Multi functional: O-rings can be used for pipeline, vehicle maintenance, etc. In addition, some valve cores are universal and can be used for tire inflation, usually used for car maintenance in workshops.
Application: The valve core kit includes valve cores of various sizes, suitable for multiple brands of cars, including the most common R12 and R-134A valve cores.