【Feature 1】Larger and firmer than the standard SunSun Sponge, a hard type suitable for cleaning the bathroom. 【Feature 2】Through repeated testing, we've achieved the optimal "mesh size," "hardness," and "size" for bathroom cleaning! 【Feature 3】While it removes dirt "thoroughly" with little effort, it's safe to use without abrasives, so you can use it on bathtubs, mirrors, and sinks "without scratching" them. 【Feature 4】Like the standard SunSun Sponge, it lathers well, drains quickly, and dries fast. It's clean, durable, and long-lasting. 【Feature 5】The color is silky gray, which blends in with your bathroom, making you feel good ♪ Only one piece.