Perfect Design Created for the Modern Home, to make life clean, comfortable and orderly. Made from natural Diatom mud and plant fiber, small holes within diatomite enable it have amazing water absorption. They could absorb water and gets dry in a few minutes. It makes the Bathroom Counter top more dry and tidy. Silicone footpads boost the slip-resistance of coasters while keeping them out of the bathroom vanity. This design improves the contact surface between the diatomaceous earth coaster and the air, accelerate moisture evaporation, and prolongs the service life of the product. Suitable to be used as absorbent mats for soaps / cups / soap bottle / dish sponge / make-up bottles, and anywhere you need to absorb water quickly and keep the table / countertop surface dry. Each package included: Tray*2; Silicone non-slip mat*8; Sandpaper*1; Manual*1; Tray Size: 6.3 inch * 3.15 inch * 0.5 inch (16cm * 8 cm * 1.3 cm) Tray Color: Dark Grey Please feel free to contact us for any problem about the products. Water Absorbent Diatomite Tray ingredient : diatomite , quartz sand , plant fiber. Diatomaceous earth is a substance formed by plankton on the seabed or lake bottom after hundreds of years of deposition. It is rich in a variety of beneficial minerals. It's body has a porous molecular sieve structure with strong adsorption capacity,humidity control and air permeability. Suitable to be used as absorbent mats for soaps / cups / soap bottle / dish sponge / make-up bottles, and anywhere you need to absorb water quickly and keep the table / countertop surface dry. Each package included: Tray*2; Silicone non-slip mat*8; Sandpaper*1; Manual*1; Tray Size: 6.3 inch * 3.15 inch * 0.5 inch (16cm * 8 cm * 1.3 cm) Tray Color: Dark Grey Maintenance: 1.Clean dirt and normal stain with clean water. 2.Clean stubborn stain with detergent. 3.Use sand paper to polish the surface when absorbent functionality deteriorates to regain the functionality.