Feature: 1. Applicable Models: The polisher backing plate is suitable for Bosch SKU 1600A01CU1, 260800351, for GEX 125‑1 AE3601C87500, 3601C87530. 2. Hook and Loop Plate: The hook and loop disc at the bottom of the sanding disc can be glued with flocked sandpaper, water abrasive discs or self adhesive wool balls. 3. Vacuum Hole: The built in vacuum hole of the sanding tray is uniquely designed, and the dust free work is more efficient and healthier. 4. Easy to Use: The polishing disc is easy to install and easy to use, which can greatly improve your work efficiency. 5. Wide Application: The matching disk thread can screw the grinding disk on the grinding machine and dry grinding machine, which can be widely used for grinding and polishing automobiles, furniture, hardware products, etc. Specification: Item Type: Polisher Backing Plate Material: PU, nylon Hole Diameter: Approx. 26mm / 1.02in Small Hole Pitch: Approx. 41mm / 1.61in Large Hole Distance: Approx. 65mm / 2.56in Grinding Disc Diameter: Approx. 123mm / 4.84in Use: Sanding machine tray. Package List: 1 x Polisher Backing Plate