If you or your child is interested in engineering and trains, they’ll love this astonishing wooden COG Marble Run puzzle that helps promote reasoning, logic, imagination, and other key factors that affect the mind. Children will love this hands-on, imaginative introduction to the world of roller coasters.
This DIY COG Marble Run Kit will help you recreate a roller coaster for the steel balls. It’s a masterpiece that you can be proud of. After the assembly, turn the hand-crank wind-up and watch the steel balls roll around the assembled build.
Our punch-out sheets are high-quality and fun to assemble. The fact that our assembly supplies are made of non-toxic plywood that is safe for the environment is an added bonus.
Assembled size: 255 x 235 x 185 mm.
Contains: 254 pieces.
Difficulty: 4 / 5.