Thank you for viewing. The type of wood is unknown. This is old wood collected as a hobby by an amateur and stored at home, so I think it's inexpensive. Size: Approximately 47 x 22.5 x 19 cm Weight: Approximately 3 kg Due to the natural material, small insects or debris may be attached. Brushed only with tap water, without using any chemicals or alcohol... stored in a warehouse. If you intend to use it for pets or aquariums, please do so at your own risk. Please check the photos carefully and consider purchasing only if you understand the above. Thank you. (^.^)(-.-)(__)