Product Description: A sheet that adheres to the sebum and hot grime floating in the bath. Compared to spherical ones, it has a wider surface area and has better adhesion efficiency, and it absorbs oil stains when washing stubborn stains. Polypropylene is a hydrophilic resin that absorbs oil from the body. Activated carbon sheet will absorb stains from hot water. It adsorbs dirt that can cause bacteria to grow, so it will not become slimy or turbidity on the next day. Estimated usage period is approximately 3 months. Material: Mesh/Bias: Polyester; Filling: Polypropylene, Activated Carbon Sheet: Polyester, Activated Carbon. Product Size / Weight: Approx. 13.8 x 9.4 x 0.4 inches (35 x 24 x 1 cm). Weight: Approx. 2.5 oz (70 g).