This Truck and Trailer Wheel Pan catches the oil that spills from the wheel hubs after the caps are removed. Fits 13-3/4″ I.D. rimsor larger. Side compartments hold lug nuts, preventing them from getting oily or lost. Sturdy polypropylene construction won’t warpif oil is warm. Holds 88 oz. No Warping: Warm oil won’t affect the sturdy polypropylene construction Large Fit: 13-3/4″ I.D. rims or larger Capacity: Holds 88-oz