MADE IN USA ⛔ Double protection design: The dust cover is engineered for a tight fit which effectively blocks dust, mud, and other debris from entering the capless fuel system, extending the service life of fuel tank components and providing piece of mind. 🔧 Accurate compatibility: 2.375 inches (approximately 6cm) inner diameter universal design, combatible with chevrolet, GMC, Buick and Cadillac vehicles without traditional gas caps. 🔒 Tether + Convenient installation: Built in high-strength tether, directly fastened into the fuel tank port without the need for tool installation; the durrible and flexible rubber material is capable of a wide temperature range. 📦 High cost-effectiveness package: 1 dust cover, solving the two major needs of cleaning and refueling; DOES NOT FIT DIESEL MODELS Compatible with Chevrolet, GMC, Buick & Cadillac