This coaster is made out of high quality smooth black wood. It is ideal for serving tea to guests. The area for placing the cup is circular and is about 4.5 x 4.5 cm.
**This coaster comes with four anti-slip stickers stuck to the bottom which are ideal for helping to prevent slippage on most flat surfaces. If preferred, these can be permanently removed without much difficulty and without damaging the wood. Please also note that the natural grain pattern of the wood may differ slightly from the picture.**