Designed by Jan Friedmann and Sebastian Sauerbeck, the Marbolous Marble Track Desk Toy invokes the magic of childhood memories. With no wires, batteries, or technology, this adult-centered marble track stimulates endless fun. Watch as 30 white glass marbles roll, spin, and twirl around the 360-degree metal track, complemented by an intricately designed mechanical marble lifting system. The protective glass dome adds another layer of fascination to your experience. An instruction manual also guarantees a seamless setup.