For making Japanese or watercolor paintings, you need a brush cleaner as large as possible. Ceramic brush washers are heavier than plastic and resin, so they are less likely to tip over your desk and they are easier to remove stains. (Specifications) Size: 4.7 inches (12 cm) / (H) 1.6 inches (4 cm) / 3 partitions / Made of ceramic. *As this is a handmade product, actual sizes may vary slightly. Please acknowledge Size No.4 No.5 No.6