This decorative box Is made of walnut, maple, mahogany, and brass. It has a mechanical opening consisting of five engraved mahogany leaves that open into the shape of a flower when the maple ring on top is spun as if you were unscrewing a jar. The outer diameter is 4 3/4″ when closed and 7″ when opened. It is 3 1/4″ tall and the inner dimensions are 3 1/4″ in diameter and 1 1/2″ tall. A video of it working can be seen here: https://youtu.be/M7KnXi-Leuw