Features: Simple and clean aquarium; Creates a sense of integrity with your aquarium and furniture; 30 cubes, all-glass aquarium: W 11.8 x D 11.8 x H 11.8 inches (W 30 x D 30 x H 30 x H 30 - 40 cm); Size (Approx.): W 13.0 x D 1.0 x H 2 inches (33333 x H 50 inches (14 inches (14 inches (14 x H 50 mm). Part (indentation): W11.8 x D11.8 x H0.2 inches (W301 x D301 x H4 mm); How to Use: Use the aquarium with a shallow recessed side upward. You can place a urethane mat under the aquarium, but it may protrude depending on the thickness. Note: Please install in a horizontal and safe location. Please do not use any aquariums other than compatible as they are unstable. Please be careful not to drop the aquarium when moving. Remember to move as far as possible Due to the use of solid wood, there may be cracks due to changes in the environment such as dryness. Please note that there is no support for use.