20 PCS 3 x 4 Inch 400 Grit Sanding Sponge Set, Ultra Fine Sanding Sponges Pads, Soft Foam Hand Sander Block Wet Dry Sandpaper for Model Drywall Metal Wood Furniture Polishing (400 Grit) | 3 x 4 x 0.2 inch Size more suitable for use, especially for edges, corners and those turning place | The sander spong is washable and reusable, conveniently to use with wet and dry wipes, meeting your different needs | Pads are Digital labeling with foam backing for easy grit identification | Ideal for use with acrylics, plastics, resin or impregnated blanks when turning. Works great on automotive and marine body work. The pads can also be used around the home for fine repair work