ROKR Wooden DIY 3D Puzzle - Gear Ball Challenge

Build a playable marble run where every track switch, lift, and ramp is under your control. The ROKR Gear Ball is a 653-piece kit with switchable channels, an automated lift, and a transparent sky ring that lets you watch the ball travel the full circuit before it drops back into play.

Ages: 14+

Finished size: 8.1" x 11.6" x 7.7"

Difficulty: 3/5

Assembly time: 5+ hours

Size for shipping: 12.5" x 9.5" x 2.5"