These are donut coasters made from walnut and Japanese ash. The simple design makes them suitable for both Japanese and Western settings. The product is a set of 5 coasters. After winning the auction, please select the material (walnut or Japanese ash). It is also possible to have two different materials in the set, with 2 coasters of one material and 3 of the other. The size is 9cm in diameter, 9mm thick, and the hole in the middle is 3.2cm. Wood wax is used for coloring. Wood wax is a dye extracted from plants, so you can enjoy the natural texture and scent of the wood. It is harmless, so it is safe for children to lick. Because natural wood is used, the grain, color, and knots may vary. Also, solid wood may crack or warp, so please understand these characteristics before bidding. The product is only the coasters. Please take a look at my other listings as well. Material: Wood Serving Supplies: Coasters