BELEEV Wooden Marble Run, Jungle Track 3D Puzzle for Adults

Manual Marble Run Fun: Build a jungle-inspired marble run featuring a hand-crank mechanical drive system. Turn the handle to activate visible gears and watch the track ball move through the pathways without batteries.
Challenging DIY Wooden Puzzle: This 255-piece 3D wooden puzzle offers an enjoyable hands-on building experience for teens and adults. With a 3-star difficulty level, assembly typically takes about 4-6 hours.
Precision Wooden Components: Made from quality basswood wi