Meguiar's® Smooth Surface™ Clay Kit helps to remove paint overspray, fallout, environmental contaminants, and more. It is safe to use on all painted surfaces and makes waxing last longer.Surface contaminants such as over-spray, fall out, brake dust, and tree sap can linger on your car's paint surface even after washing and waxing. Applying car wax on top of contaminants takes more effort and prevents the paint from reflecting light and shining to its full potential. The clay bars in the Meguiar's Smooth Surface Clay Kit removes bonded contaminants as you rub it across the surface of your car using a mist & wipe product, like Meguiars Quik Detailer Spray, as a lubricant. The Meguiar's Smooth Surface Clay Kit provides the best performance and best value with a full-sized Meguiar's Quik Detailer Spray, Meguiar's Supreme Shine Microfibre Towel and 2 Meguiar's Premium Clay Bars. Make your wax protection last longer by removing above surface contaminants while restoring a smooth-as-glass finish with Meguiar's Smooth Surface Clay Kit.