This cat tower is made of natural wood and can also be used as interior decoration, such as a stand for vases, potted plants, and small items. The main pillar is made from the root of a tree that washed up on the coast and was buried in the sand. It was dug up and brought home. This forms the main pillar with three tiers, and another tier is made from a thin piece of driftwood, for a total of four tiers. The type of wood for the large and small pillars is unknown, but the top boards are made of sugi (Japanese cedar) for the top tier, hinoki (Japanese cypress) for the second tier, and kaizuka ibuki (Chinese juniper) for the third and fourth tiers. Size: Maximum height: Approximately 85cm Maximum width: Approximately 80cm - Top tier: Approximately 33cm in maximum width, almost circular - Second tier: Approximately 50cm x approximately 25cm, almost oval - Third tier: Approximately 38cm in maximum width - Fourth tier: Approximately 36cm in maximum width A square hole is made in the base pillar, and a rod is inserted to support it, providing easy stability. In this state, the thin pillar with the top tier attached is inserted into the hollow part and fixed with one screw. Please note that attaching this pillar will exceed the 200-size shipping limit, so this will need to be attached by the customer. It can be easily done with a screwdriver. Using beeswax from the Japanese honeybees I keep as a hobby, I made a wood wax and applied it overall, giving it a nice shine. Please feel free to ask any questions. Thank you for looking.