Designed specifically for Freightliner, Kenworth, and Peterbilt Semi Trucks manufactured from 1990 onwards. This product also fits most (10 Hole) 11 1/4" Bolt Circle/Center applications and a majority of wheels sized 20", 22 1/2", and 24 1/2". Crafted using robust high-impact ABS plastic material, this product is built to endure the extreme heat generated by the axle, ensuring durability and longevity. Each kit includes 6 covers, 6 caps, 60 nut covers, and a comprehensive installation tool for effortless setup and convenience.