Material: Plastic Size: 5.4*2.3cm / 2.11"*0.90" Color: as shown 1. Safe seal: This gas tank cap has reliable sealing performance, ensuring that the fuel in the car's fuel system will not leak or spill, ensuring your driving safety. 2. Sturdy and reliable: This gas tank cap is made of high-quality materials and can withstand harsh weather conditions and frequent use, ensuring long-lasting service life. 3. Easy to use: Installation is very convenient, just gently twist, you can easily open and close the gas tank cap, making it easy to refuel and maintain the fuel system. 4. Large capacity: This gas tank cap comes in different sizes, including 1 gallon, 2 gallons, 3 gallons, and 5 gallons, suitable for gasoline tanks of different sizes, allowing you to easily refuel anytime, anywhere. 5. Economical and practical: High cost-effective, not only can effectively protect you and your car, but also save a lot of money and time in long-term use, making it a major economical and practical accessory for cars. Package includes: 1*1/2/3/5 gallon gas tank cap.