Made of natural diatom and plant fiber, the small holes in the diatom soil water absorption. They can water and dry after a few minutes. It makes the bathroom countertop more dry and tidy. The striped groove design accelerates the absorption and volatilization of water, and has a non - effect. Suitable absorption pads for soap/cup/soap /washing sponge/cosmetic , and any that need to quickly water and keep the table/table surface dry. Colour:grey Material:diatomite Size:21 x 10cm Package Contents: 2 x Coasters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.