Mirka Brand - Autonet - AE203150 3" Mesh Grip Discs (Velcro/Hook & Loop) Abrasive Sanding Discs 150 Grit - Brand New Box of 50 Discs 3" Autonet is manufactured in the following grits: 80, 120, 150, 180, 240, 320, 400, 600, & 800. Mirka Grip Discs = Velcro/Hook & Loop Backing Autonet is specially developed to satisfy the unique demands of the automotive refinishing indsutry. The patented construction consists of a dense network of polyamide fabric threads onto which the abrasive grit is bonded. This new-age surface finishing solution offers speed, excellent efficiency and an amazing dust extraction ability. The jobs get done quicker and with a better surface quality.* Excellent initial aggressivity* Reduces edge wear in finer grits * Eliminates clogging and pilling* Long life-span* Phenomenal dust extraction across the entire abrasive surface* Virtually dust-free sanding* Cleaner and healthier working environment* A versatile range to suite any application