This is a Musical Mobile Holder, which has a hook that revolves while music plays. It includes a winding key, and comes with mounting hardware and assembly instructions. Assembled case measures 23/4" dia. x 41/2" long overall (70mm x 114mm).
Please Note: Musical movement is NOT included in the price and has to be purchased separately. Please see MM1A movements for selection of tunes available here at The Music Box Shop (see Related Products below).