$90.00 Save $-90

• Mechanical clock puzzle: Aero Clock is a fully functioning DIY wall clock with a pendulum and is the #1 "most-requested" model building kit by our loyal customers
• Be the proud clocksmith: Like all UGEARS 3D puzzles for adults and kids, you are the creator in chief. You build it, mount it on a wall, then wind up this pendulum clock kit and watch the minutes tick by
• Elegant simplicity: This mechanical clock is driven by the force of gravity and has a miniature hot air balloon instead of the classic cuckoo to mark the hour. The balloon descends when the hour strikes, then it slowly rises again for the next 60 minutes