The Abracs ABSS040 Sanding Sponge Block is washable and re-usable The Abracs ABSS040 doubles up as a sanding block and sandpaper in one. It measures 100mm x 70mm x 25mm and is very flexible for use on all surfaces. These sanding sponge blocks can be used either wet or dry and this one, in particular, is perfect for fine finishing as it is 40 grit. Features: Washable and re-usable Ideal for small intricate areas Great for creating a fine finish Stock removal and surface preparation Can be used for wet and dry applications Suitable for sanding wood, paint, varnish, plastic, filler and metal Specification: Grit Rating: 40