Auto Trim Design IS your premier customizing shop. From Brush Guards to Tail Light covers, Auto Trim Design has thousands of products to trick-out your car, truck or SUV. We carry name-brand accessories from the most popular manufacturers. We carry a large supply of step-rails, bed liners, floormats, truckboxes, etc. in stock and ready for installation. Installation is available on all of our accessories and can usually be done on the day of purchase.