ROKR Marble Night City is based on great human engineering. They combine the beauty of science and machines, involving so many small gadgets. Build the set and crank the handle, watch marbles run crazy down the slopes and twisting turns.

Break through material restrictions and incorporate high-transparent acrylic. Funnel-shaped track, the total length is extended to 2.5 meters. Shake the handle, the steel ball will reciprocate along the track, experience the creativity of precision machinery.