The pillar is driftwood, but the type is unknown. The base is Japanese cypress (hinoki), and the top board is Japanese cedar (sugi). Dimensions: Height: Approximately 106cm Top tier base: Maximum width approximately 36cm Second tier base: Maximum width approximately 36cm Third tier base: Maximum width approximately 30cm Base (foundation): Maximum width approximately 50cm Due to the size of the product, it cannot be packed within the size limit (200cm) when assembled, so all three bases will be shipped separately. Therefore, the customer will need to secure the top and second tiers with three screws each, and the third tier with two screws, using a screwdriver. This is easy to do. The product is coated with wax made from homemade Japanese honeybee beeswax, giving it a nice shine. Thank you for your interest.