NiuYichee 2 PCS Water Absorbent Diatomite Coasters with Grooves(12 x 4 inches) Absorbing Stone Used for Hand soap & Cups Drinks Bottles Plants and Cosmetic 31-10cm Dark Grey vanity-trays

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.