Technology Advanced manufacturing technology Made of high quality imitation wool, soft and durable, will not damage the surface. Can be used to paint gloss. What you will receive pads 4pcs 6 inch wool bonnet polishing pads, 1pc 6 inch backing pad with standard M14 TPI thread, 1pc M14 thread adapter and best service. Widely application Compatible with M14 TPI Velcro Pin Synthetic Polishing Cap, Synthetic Pin and Loop (with super sharp effect, extra fine surface). Can be used on anything that needs buffing or buffing, such as cars, vans, glass, stone, ceramics, etc. Fast shipping Fulfilled by amazon, will provide you with quality service. 'fast and convenient shipping, will allow you to have your package much sooner. Easy to use With light weight and adhesive backing, very easy to assemble, you can change your cushion in just seconds . Can be used in air or electric polisher or car detail polishing. Note: The data is all measured manually, please allow 1-3cm error, due to the difference