Spin Master Perplexus Revolution Runner. Motorized 3D marble maze. 4 spinning speeds. Challenging, brain teaser, skills, mind bending game. Measures 10” diameter. Requires 3 AA batteries - not included. Pre-owned in great working condition. Accepting all reasonable offers. Bundle with other items in my closet by tapping on the Add To Bundle button to save on shipping for multiple items. Fast shipper! BAB87-51