Complete Types: Includes 100 different grit grinding wheels: 60# 80# 120# 150# 220#, 20 pieces of each type. Almost all polishing needs are met High Quality: The grinding wheel is equipped with a thick Class D paper base made of high-quality aluminum oxide with abrasion-resistant sand. The high-strength resin bond system increases the service life. Easy Change: The sturdy reverse Velcro closure makes changing grinding wheels easy and convenient. Hold the Velcro for faster assembly Applicable Operation: Suitable for grinding and polishing metal, non-metal, wood, rubber, leather, plastic, stone, glass and other materials. Very practical and you can order according to your needs Package Content: 1 x HGSD8KMIX 100pcs Grinding Wheel (60/80/120/150/220 Grit, 20pcs Grit of each type) The grinding wheels are made of aluminum oxide material designed for fast grinding and heavy stock removal, providing fast and durable cutting. The sandpaper is widely used in automotive, woodworking, marine,