d115 x h20mm
It is highly recommended to keep the coasters dry after usage. If any liquid is left on the coasters for a long period of time, the minerals in the water will accumulate and create white stains. To remove the water stains, dilute 5 % citric acid with water to make a solution. Use this solution to wipe the coaster with a clean cloth then rise and dry well.
Any drops of water that run down the glass to the coaster slide into the ray patterns, creating a space that allows the coaster not to stick to any drink. At the back of the coaster, there is a silicone ring that prevents damaging of tables or any surface.