Our Plastic Plates glide smoothly and silently over obstacles, offering great protection in rough terrain. Made of abrasion-resistant thermoformed High Molecular Weight Polyethylene (HMWPE). Lighter than aluminum. Superior stress crack resistance. High impact strength. 3/8” (10 mm) thick High Molecular Weight Polyethylene (HMWPE). Standard on X rc models. Maverick Sport X mr, X rc and X xc, Commander, Commander MAX XT & XT-P