For the 1940 Oldsmobile Series 70 and Series 90 cars, these rear bumper arm grommets measure 2-1/2" wide by 4-1/8" long, with a 1-1/2" long inner slot, ensuring a precise fit for your classic vehicle. Designed to provide a snug and secure seal where the bumper arm passes through, these grommets help protect against wear and tear while maintaining the car's original appearance. Made in the USA, they are crafted from high-quality materials that offer longer-lasting elasticity and durability compared to artificial rubber used by competitors. Their sleek black finish complements the vintage style of your Oldsmobile, enhancing its overall look. Backed by Metro’s Platinum 30-year warranty, you can trust in their performance and longevity.