DescriptionThis replacement backing pad is designed with 4 screw eyes design, making it easy to install firmly and improving your work efficiency. Suitable for various materials in both woodworking and metalworking, including wood, aluminium alloy, rubber, leather, plastic, glass and other materials.Features-Color: Black-Material: PU foaming material -Size: 12.30X1.20X1.10cm/ 4.83X0.47X0.43 in. - It is designed for polishing and sanding hook and loop fastener's surface, giving you a smooth finish.- This hook and loop sander pad has good compatibility, which can work with most sanding machines. - The sanding pad is designed with 4 mounting screw holes for quick and easy installation, and for increased abrasive sanding paper grip.-8-hole design. the hook and loop sander replacement backing pad features convenient dust collection. - Effectively vacuum up the dust and debris, providing a quick dust removal effect while saving your energy and time.