Description
- Marble Run Race 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
- Swing back rails: LG503 marble explorer is a handcrafted marble set with a swing back-rail wall. Build it with 219 building pieces and 10 marbles
- Many gear gadgets: consists of a crane lifter as an elevator, swing back rails, 2 straight rails, 2 curve rails, a flip-flop as a switch to drive marbles to 2 paths
- Stem concepts: learn principles of science, technology, engineering, and mathematics
- Assembled Size: 252X227X203mm
- Package Size: 317X233X46mm
- Wood Pieces: 219 pcs
