Description: 100% brand new and high quality Made of high quality material, durable and practical to use Grinding, polishing and grinding inner circles with different angular positions and irregular positions. Application: Suitable for all kinds of electric, pneumatic electric grinder and electric drills. Suitable for polishing and roughing various metal and non-metal materials such as wood, furniture, etc. Technical data: Color: as picture shown Material: sandpaper (resin) Grit: 80# Shank diameter: 6mm Size: 15/20/25/30mm Weight: respectively 12,16,20,26g. Package includes: 1pcs sandpaper wheels. Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.