Pro-Tek GC-7C - Chrome Keyless Gas Cap Top For Pro-tek Gas Cap Bases CNC made from 6061 T-6 billet aluminum Comes in five anodized colors (Black, Red, Blue, Gold or Clear Coat) and triple chrome-plated finish which allows color mixing and/or matching with gas cap base Comes with an O-ring to insure a tight fit to prevent leaks Cap is engraved with the words Pro-tek Racing