This is 2 sets of Jacks Flexi Track but with only one of the cars (the wheel fell off the other one!)
This is a link to one of the sets: https://www.thetoyshop.com/transport-toys/race-tracks/Jacks-Dino-Flexi-Trac...
The other set was the glow one I think but can't find a link to it.
This would be good to add to an existing set as the layout is quite limited (aka boring) with a small amount of track.