This turntable fits a standard windup music box. Glue the music box to the inside of a base with a hole where the music box key hole is. Screw on the turn table and glue a figurine on top of it. Turning the figurine will wind the music box and the figurine will turn around as the music box keeps on playing. 2” diameter. 3/8” metal stem. The plastic is a little hazy and not totally clear.