- 【Cool Marble Maze】A challenging model kits to build with 294 pieces and 10 steel marbles. Compatible with all accessories and see-through arcylic tracks. It requires close concentration and patience to assemble. Final built of 12.8x8.4x9 inch.
- 【Driven by Gears】The 3D puzzle connects different tracks by gear trains, including a waterwheel, flip-flop-splitters, funnels, S-turn and U-turn slides, trap-doors, gradient slides. Just crank the handle and activiate the roller coaster!
- 【No Glue or Extra Tool Needed】Made of durable plywoods, wood parts are precisely laser-cut and fit well together. The 3D puzzle comes with an easy-to-follow manual and all necessary accessories. Follow the instruction exactly step by step. You'll make it.
- 【Impressive Gift】Great crafts hobbies for men/women/boys/girls. The 3D wooden puzzle is perfect choice as family time project, birthday gift, anniversary gift, Christmas gift, etc. A bit challenging but really worth your time with grand result.
- 【Happy Guarantee】If you have any assembly question or need replacement parts, please feel free to tell us. We are glad to help.