For 1938-1940 Buick Century, Limited, Roadmaster, Special, and Super cars, these rear bumper arm grommets measure 2-3/4" wide by 4-3/4" long, with a 1-1/2" long inner slot, ensuring a precise fit for your classic vehicle. Crafted in the USA, these grommets are made from high-quality materials that offer longer-lasting elasticity and durability compared to artificial rubber alternatives. Designed to protect and seal the bumper arm area, they help maintain the integrity of your car's rear bumper while enhancing its overall appearance. These grommets are a perfect replacement for worn or damaged originals, ensuring your Buick looks and performs its best. Backed by Metro's 30-year Platinum Warranty, you can trust in their quality and longevity.