E-Z Lettering Service specializes in auto dealer supplies, offering a wide range of products including windshield decals, advertising, key tags, balloons, car bows, and license plate frames. They are known for developing removable adhesive windshield numbers and signs in 1959, tailored for automobile dealerships to replace traditional methods like shoe polish and paints. In addition to their adhesive windshield products, they provide Flags, Pennants, Selling Aids, Service Supplies, and other products designed to help dealerships attract customers, increase sales, and enhance customer service. E-Z Lettering Service sets industry standards for product quality, performance, and packaging, aiming to serve automobile dealerships effectively.