Wood: SPF lumber (pine, spruce, fir), cedar, cypress, etc. Size: Approximately 54cm x 30cm x height 23cm Color: Top board: Nippon Oil Stain, Walnut Legs: Blue Gray Designed to fit Western-style toilets without a constriction. Confirmed to be usable with various toilets at the showroom. Doesn't get in the way much when adults use it, even if left in place. Different colors can be made.