Suitable for all water based media * Paint tray has 25 rectangular wells * Size: 28.5cmX12.5cmX2.5cm (11.25"X5"X1") * Brush Slot Size: (11.4 x 1.25 x 0.8") * Made of molded white plastic, it is durable and easy to clean. The lid is a free bonus and it may have minor cosmetic issues(like NOT fit tightly)