Charm of HIPS - HIPS is a material that looks like natural wood and has a nice grainy feel to it. HIPS is denser and more robust than HDPS. It performs better than wood in terms of water resistance, weather resistance, scratch resistance, stain resistance. Perfect for enduring bathroom conditions, making it the smart choice for those who value both aesthetics and long-lasting quality. Waterproof & Cleaning Sponge Brush - oridom shower stool made of polystyrene meterial, which looks like real wood but without the hassle of swell, warp, splinters, discoloration. Any dirt can be cleaned off with our complimentary cleaning sponge brush, and the stain soon faded away easily.