Material: High quality alumina sanding discs pads with special heat treatment, its excellent polishing, sharp and wear resistant, good choice for sanding and polishing. Hook and Loop Design: Hook and loop backing for quick fitting, and pre-punched with 6 holes for dust extraction, strong and long lasting, easy to install and remove. Application: Mainly used in furniture, automobiles, yachts and other industries, suitable for sanding fillers, primers, fillers, paint, metals, wood, thermosetting plastics, plastic, artificial stones. Suitable for: Precisely fitting sanding discs with Nylon Sticker for long-neck , drywall and grinding giraffes with a 225 mm large sanding disc. Size: 9 inches (225mm) Granularity: 120# Colour:brown Material:Alumina Package Contents: 30 x Sanding Discs Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.