Size: 4x36 inch(100mmx915mm) 60/80/120/150/240/400 grit sander, 2pcs of each grit, 12pcs in total (Note: Overlap joint belts: sand in the arrow direction. Butt joint belts( 280 grit): sand both ways)Applications:Abrasive belts are very suitable for knife grinding, rust removal, deburring, blade sharpening, metal polishing, woodworking. They are suitable for all kinds of kitchen knife, scissors, carving knife, gardening knife, serrated knife, lawn mower blades, tool head and can also be used for other materials including wood, fiberglass, rubber, plastic, stone, etc.Features: Durable Aluminum Oxide Material: The tool grinding belt has a high hardness, good toughness, can be continuously and effectively polished, has good heat resistance, and is suitable for knife, metal surface processing, wood grinding, etc. Uniform Abrasive and Strong Adhesion: The electrostatic coating process is adopted to bond the abrasive through electrostatic attraction, forming uniform grinding with strong adhesion. Even if it is bent, the abrasive will not fall off. Reasonable Joint Matching: Low-grit overlapped abrasive belts are durable and not easy to break, suitable for rough grinding; 280-grit and above abrasive belts have smooth butt joints, which can provide a more uniform grinding effect and are suitable for fine polishing. Different interface combinations can better meet matching needs. Moisture Proof: The bottom of the sanding belt is made of hard cloth material, which is moisture-proof and can be stored for a long time.Useful Tips:Please grind the overlapping sanding belt according to the direction of the arrow.