This backing pad is designed to deliver performance with electric polishers. The hook and loop system allows for fast and secure attachment of sanding discs, while holes facilitate effective dust extraction. Its durable construction ensures it can handle tough sanding jobs, making it an essential tool for achieving professional results. Features -Color:Black -Material:Polyurethane -Size:12.30X12.30X1.00cm/4.83X4.83X0.39in -Compatible design: the 8hole 4eye installation design fits various electric polisher models, making it a replacement for sander trays -Durable build: constructed from engineering plastic and hard rubber, the back plate is robust, and designed for long term use -Dust extraction: additional air intake holes maximize dust extraction, helping to clear the work surface and extend the sanding disc's life -Simple installation: to replace the sander pad, unscrew the four screws on the sander and install the new pad; press and twist the sandpaper for optimal grip -Versatile application: designed for use with sandpaper, it is for quick sanding and polishing of flat surfaces on materials such and wood Package list: 2 pcs x 1 polishing machine polishing disc