I think I've explained this before but I will do it again just for Nigels! 
Petit Train is a Joint Venture between Toys R Us Japan and Daiso for these trains.
Everything in the series, trains, parts, scenery, tracks is the same price in Japan. Only the full sets with special trains are not the same price and are sold exclusively in Toys R Us in Japan.
They don't work well on Plarail tracks (if at all). They have smaller wheels.
-plarnold
Petit Train is a Joint Venture between Toys R Us Japan and Daiso for these trains.
Everything in the series, trains, parts, scenery, tracks is the same price in Japan. Only the full sets with special trains are not the same price and are sold exclusively in Toys R Us in Japan.
They don't work well on Plarail tracks (if at all). They have smaller wheels.
-plarnold