Perfect design for , make life clean, comfortable and orderly. Diatomite drink coasters are made of natural diatom mud and plant fibers, the small holes in the diatomaceous earth amazingly absorbent. They absorb moisture and dry out in minutes. It makes bathroom countertops more dry and tidy. perfect as an absorbent pad for soap/cup/toothbrush/dental glass/cosmetic bottle, and anywhere you need to quickly absorb water and keep your table/countertop dry. The absorbent diatom mud pad is easy to clean, just wash it under running water and wipe it with a damp sponge. Then let it dry naturally, and the bath mat will quickly refresh and perform like new. Material: Diatom mud colour: dark grey Package Contents: 4 x bracket(2 x 16x8cm, 2 x 8x8cm) 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.