The Large Stone Bath Mat is a super absorbent and anti-slip bath mat made of diatomaceous earth, measuring 31.5" x 19.7" in a rectangular shape. It is designed for adult use in the bathroom and features a gray color. This mat is lightweight, weighing 9 pounds, and may need to be placed on a towel or bath rug for added comfort. It is recommended to not tumble dry this bath mat for optimal use.