Why Choose 10 Backing Pads: With 10 hook and loop backer pads, you can assign one to each grit. Mark backing plates with grit numbers yourself for quick, orderly changes-no more damage to foam pad and 2 inch sanding discs, great for DIYers and pros looking to work more efficiently Universal Fit with 4 Mandrels: Includes 1/4 inch hex and 1/8 inch round shank mandrels plus an adapter form M6 to 1/4-works as a perfect for sanding bits attachment, fits most rotary tools, like for angle die grinder, for , drill or air grinder, this kit has you covered for home, garage, or pro use Stronger Grip, Longer Life: Upgraded with a high-density hook and thickened polyurethane base, the industrial-grade interface pads deliver a secure grip that lasts. The reinforced backing plate is 3x more tear- than standard versions and resists deformation Smoother, Easier Sanding: Designed with soft cushion, the foam sanding pads absorb vibration to deliver a steadier, more comfortable grinding experience. Whether you're working on flat surfaces or curved , the flexible sponge layer helps work smoothly with less effort Full Grit Range for Every Job: The drill sander attachment includes 300 for sanding discs (80-3000 grit) for both dry and wet sanding. Red aluminum oxide handles wood, metal, and paint; gray silicon carbide is perfect for wet sanding stone, ceramics, and fine finishes. Color:As Shown Material:Alumina Package Contents: 10 * trays 4 * connecting rods 300 * sandpaper (P80/P120/P240/P320/P480/P600/P800/P1000/P2000/P3000, 30 sheets each grit) 10 * cushion pads 1 * black nut Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.