Great Vintage 50's Turnabout Lazy Susan - Wood type unknown to me but it is a very heavy wood with a lovely grain, if that helps.

9.75" in diameter - Center recess is 3.5" in diameter. Entire piece is 3" tall. -
The workings are in excellent condition. Turns swiftly and easily. Bottom was covered with felt - worn off slightly on edges from use.
Please see pictures