- Cool Perpetual Motion STEM Kits: This ROKR Night City Wooden Marble Run is operated by a manual hand crank, featuring mechanical gear rotation and an endless loop steel ball system (the set includes 10 metal balls), allowing you to experience the allure of machinery
- Multiple Tracks for Interactive Fun: Turn the crank, and the steel marbles will travel along three distinct tracks to perform a gravity-driven descent. Each seemingly accidental or fateful path selection yields a myriad of entertaining sights to enjoy
- No Glue Needed During Assembly: Natural birch plywood instead of common plastic material is adopted in making this model
- Unique DIY Gift Idea: Suitable for gift-giving, parent-child interaction, personal collection, or decoration, this retro bakery kit from ROKR is easy to assemble and will dress up any space immediately
- Assembly Support Available with Part Replacement: ROKR provides assembly support around the clock, ensuring that you can build and enjoy your own dream miniature house with part replacement available if needed
- 3D Wooden Puzzle Construction: Features a detailed 3D model kit design that combines engineering principles with hands-on building experience for adults and kids alike
- Mechanical Gear System: Experience the fascinating world of mechanical engineering with visible gear rotations and moving parts that demonstrate real physics principles in
We have been trading for 30 years and always use a tracked courier service .
Thanks for looking at our items for sale. Polytime International was established in 1997.We are always fair and honest, so you can buy in confidence. If something is not right please let us know before leaving bad feedback, we will sort it out. We work normal office hours and can be contacted on 01604 810055