Whether this is your first 3D puzzle or you are looking to expand your existing craft collection, you’ve come to the right place. Building this is half the fun, then you can play with it! This wooden COG Coaster will keep you busy as you put pieces together to make it.

The Chocolate Factory marble run is like none other! It features a colorful design, lights, and glossy marbles in various colors. It's an intricate 3D wooden puzzle that showcases an effective engineering design combined with lots of fun aspects. Full of twists, turns, and spirals, this marble run is a thrill to watch! It is run completely by mechanical means—no battery needed!

• This DIY COG Coaster Kit will help you recreate a roller coaster for the steel balls. It’s a masterpiece that you can be proud of. 
• If you or your child is interested in engineering, they’ll love this astonishing wooden COG Coaster 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. Includes 420 pieces.
• The punch-out sheets are high-quality and fun to assemble. The fact that the assembly supplies are made of non-toxic plywood that is safe for the environment is an added bonus.
• Finding a good gift can be hard, especially if you’re looking for one that is unique while stimulating. This 3D Cog Coaster Kit is great and recommended for ages 14+. It is unique, challenging, and fun!

• Assembled size 10.04 x 6.69 x 12.2 inches
  
• 420 pieces