On-the-Go Playbox is a Take-n-Play and Adventures storage accessory. It is a storage case of Thomas which can fit 11 vehicles on its four rows, and it opens up to a loop of track which can be connected on to playsets.
The loop of track features a tight bend especially designed for Take-n-Play vehicles from 2015 as they each have a maximum of six wheels each. Earlier vehicles are too big to use it.
Take-n-Play On-the-Go Playbox
Take-n-Play/Adventures On-the-Go Playbox closed up