Surface Prep Mitts are the fastest, most comfortable way to remove stubborn above-surface, bonded micro contaminants like fallout, tree sap, water spots, bugs, road debris, and more from your vehicle's exterior surfaces, including paint, glass, chrome, and plastic. The mitt's unique pattern polymer surface measures 5 1/2" x 7 1/2" which is seven times larger than traditional a 3" x 3" clay bar. The composition of these innovative mitts is super durable, lasting 10 times longer than a traditional clay bar. Use with Speed Glide or Car Wash to enhance lubricity and maximize your results.