Ready. Set. Race!
【ENGINEERING MARVEL】Full of elaborate mechanisms and small tricks. The precise gear design provides smooth transmission speed ratio. Each gimmick will create dozens of fun to watch. You can also learn the fundamentals of engineering and structures of machines.
- a stair stepper as an elevator
- a spiral funnel,2 straight rails, 3 curve rails
- a wheel lifter to bring marbles to the top
- a flip-flop as a switch to drive marbles to 2 paths
- a hand crank to run the whole system to move
【REWARDING CHALLENGE】Highly satisfying and educational building experience. A brilliant way to enhance understanding of STEM principles and improve kids’ motor skills. This building set will put your visual-spatial skill and patience to the test.
【IDEAL GIFT& HOWE DECOR】Perfect gift at any occasion for all ages. Detailed design and attractive appearance make it a unique touch to your home and office.
【NON GLUE& NATURAL MATERIAL】Lightweight models made of natural plywood. Pre laser-cut wood sheets with well-fit parts. No glue needed, easy to assemble together. Non toxic materials ensure you a safe building experience.
David –
loved the idea. It was like being a detective, figuring out where each piece belongs. The instruction manual, although without words was very good.
My only problem was that some key slide parts that the ball has to roll over, needed more jointing connectors like B14. (I hope someone from this company goes back and looks up part B14.) I am going to buy another set since I truly enjoyed this challenge.
Ed Plewa –
I got this on a whim thinking it would give me something to do other than watching the grass grow….now I’m hooked! This LG 501 Marble Run took me by surprise. It’s fantastic the way it’s been lasered and fun to construct! I enjoyed working on it took my time and completed it in 3 days. It worked completely the very first time, about 1 hour ago. I was so excited to have my wife of 51 years turn the handle and see the marbles go through their run. Marvelous! Thanks so much…I’m going to order more.
N
Tom Baird –
Thoroughly enjoyed this product. Non oily lubricant spray works wonders for smooth operation.
Julie –
I received this as a Christmas gift from my husband. It was great fun to assemble, and is almost hypnotic to use. Like others have said, the rocker must be aligned perfectly with the tracks or the balls fall off. The balls have some trouble entering and exiting the large wheel, but that’s a fairly minor issue.
Steffen –
Send a review earlier today. Didn’t have the instructions! My wife had moved them… Nothing is missing! Great quality! I bought 3 sets (tractor and locomotive as well). Everything is working great!
Rusty –
I received the marble run as a Christmas gift. I had gotten the clock puzzle a couple of years ago and knew I was in for a treat. The puzzle was easy to assemble and works like a charm. ROKR products are high quality and very affordable. I’ve recommended them to others as gifts.