Do you know the educational toy called “Rail Cube”? It’s a reconfigurable coaster you can play with in a Plarail + Cuboro kind of way. Its biggest feature: no need for gravity—it can run not just vertically but even upside down. The USB-rechargeable cars can take sharp turns even at the smallest block unit, and even 3-year-olds can attach and detach them. Nice. The movement is unique↓

A video posted by @Mehare_S on X (formerly Twitter) (March 2, 2024 ・ 車・乗物 ・ 0:45). Watch and download it on XCLYP.