Universal flexible connector for wooden train sets (Brio, Lidl Playtive, Ikea Lillabo…). 

If you dislike loose and misaligned rail pieces as much as I do than this universal spring loaded connector should be your solution :)

My intention was to create universal but at the same time tight connector that can fit well with various track pieces with slightly different tolerances.
Thanks to the flexible design it creates slight tension between two parts of tracks and pushes them together. At the same time it also allows for slight side to side adjustment for perfect fit.