https://www.fujistarabrasives.com/products/fuji-star-film-discs/ Fuji Star® Film Discs are flexible and long lasting, allowing you to better adapt to surfaces and contours and prevent "over-sanding" or "burn-through". Ideally designed to eliminate defects in a short time and get the best possible mirror finish from your polishing system. They are waterproof for wet sanding applications and are tear resistant.All Rights Reserved