3M Stikit Blue Abrasive Disc Rolls are built with a 3M engineered ceramic-mineral blend, which delivers superior cut for a full range of automotive sanding applications. An anti-loading coating reduces loading from dust and extends disc life. Stikit adhesive attachment makes changing discs quick and easy. Adhesive-backed Stikit discs are easy to attach and remove Engineered ceramic mineral blend is balanced for maximum abrasive performance Upgraded resins improve durability and finish Anti-loading coating prevents dust and debris from clogging the cutting surface Discs tear off conveniently one at a time without liners for added cost savings25 discs per roll 3M Stikit offers a full line of discs and is available in an array of grades for use throughout the entire repair process: 40, 80 and 120 grit discs are recommended for paint removal and filler sanding 150 and 180 grit discs are recommended for featheredging and filler sanding 220 and 240 grit discs are recommended for featheredging 320 grit discs are recommended for featheredging and primer sanding 400 and 500 grit discs are recommended for primer sanding 600 and 800 grit discs are recommended for primer sanding and blend preparation