Multi-Sand abrasive sponges are a good choice for general purpose hand-sanding applications on a variety of materials. Ideal for sanding profiles and radiuses, corners, crevices, spindles, turnings, and railings. Rinse and reuse for up to 5 times longer life than sandpaper. Grit 150 fine for final sanding of surfaces prior to coating with stain, primer or sealer. Measures 5-1/2" length by 4-1/2" width.