MAX-MOTORSPORTSa family-owned and operated small business since 2000 in the USA. Don't get hosed by the competition. Our 18 long gas cap vents fit snugly and securely on gas caps with a 1/4 nipple. They are made of flexible polyurethane hose, are durable and easy to clean. We offer numerous colors to customize your ride. All cap vent come with a decal.