Aluminum rim-lock spacers and rubber valve stem grommets are custom contoured to allow even distribution of stress and seal out the elements Designed to effectively seal out dirt and moisture where they affect off-road wheels the most - at the valve and rim stems Includes 2 of each: M8 fuji nuts, aluminum rim lock spacers, rubber grommets and polished metal valve caps Also includes 2 polished metal valve caps, 1 of which has a handy built-in valve stem remover. VALVE STEM LOCK SEAL 2PK