GLASS ABRASIVE #20 - Super Coarse Grit - 25 lbs. - Sand Blast Cabinet BLASTING MEDIA - By Tacoma Company USA Made Super Coarse 20 Grit Size Crushed Glass Abrasive Great for Blast-Cleaning of Heavy Rust & Paint Removal Non-Toxic, Silica-Free, Environmentally Harmless Great for Craft & Hobby usage