【4" Dia & Connection Rod】4-inch hook and loop backing pad,with Connection Rod 【Hook and Loop Backing Pad】The hook and loop backing pad will makes the changing between the synthetic wool pad and the sanding disc very easy and simple 【How to Use】The polishing sanding pad is used with orbital sander.The front side can be equipped , while the back side can be bonded with flocking sandpaper, water grinding sheet, wool polishing sanding disc and sponge polishing wheel 【Integration Using】Matching-angle grinder and polishing machine are used together, the front side can be screwed on the angle grinder, and the back side can be glued with flocking sandpaper, water milling or self-adhesive wool ball, sponge ball. 【Widely Application】Ideal to use for grinding and polishing artificial stone, furniture and wood products, metals, automobiles and other items., Manufacturer: Utoolmart