These SurfPrep ProFoam pads are great for preparing various surfaces. Ideal for cabinet and furniture builders who need to sand into corners or detailed areas. You can also use them inside drawer boxes or on white wood beading of moldings. They come in a box of 25, with each pad measuring 3 inches by 4 inches and being 5mm thick. There's a product update to a 6 - hole pattern soon, but 4 - hole abrasives will still work on the new pads.