BLUCAPS!

caps for vehicle tanks, containers and receptacles; locking caps for vehicle tanks, containers, and receptacles

non-metallic caps for the apertures of tanks and containers; locking non-metallic caps for the apertures of tanks and containers; non-metallic caps to prevent the removal and/or siphoning of liquids from tanks, containers and receptacles; non-metallic devices to prevent the contamination of liquids in tanks, containers and receptacles