Overview Material : Stone Brand : LWCUSNJ Color : Blue Product Dimensions : 5.9"L x 0.78"W x 0.4"H Item Weight : 8 ounces Grit Type : Coarse Number of Items : 4 Manufacturer : LWCUSNJ About this item Green Silicon Carbide Material: Crafted from premium green silicon carbide, balancing high hardness and toughness for durable preliminary/non-fine grinding. Note: Material wears easily—control pressure to avoid aggressive grinding. 4 Grit Options (150#-320#): Covers 150#, 180#, 240#, 320# grits for versatile use, from heavy rough grinding to medium finishing tasks. Large Flat Square Design: Dimensions: 150mm×16mm×16mm (≈5.91in×0.63in×0.63in), offering a stable, broad surface for efficient, even grinding. Smooth, Uniform Grinding: Fine, evenly distributed particles ensure consistent, polished results for tools, molds, or hard materials. Multi-Grit Set for Daily Use: Includes 4 high-quality stones (1 per grit), providing ample supply for various projects. Use with water for optimal performance.