WINOMO Diatomaceous Earth Bath Mat Natural Antibacterial Anti-Slip Bathroom Mat diatomaceous_earth Brand: WINOMO. Color: Grey. Size: about 60 * 39cm. Material: Natural Kieselguhr / Diatomaceous Earth. Breathable anti-slip mat is safe to use. Diatomaceous earth whose water-absorbing power is high. Ideal for use in your bathroom, laundry room, bedroom, living room, and even kitchen, etc.