The trolley we purchased for our set of Daniel Tiger figures was annoying my daughter because it wasn't big enough for all five characters to ride. SO, I put this one together... but keep in mind my printer is only 150x150 so it has to be very modular. When put together, the trolley is around 285mm long and 145mm tall. Everything comes apart, and is meant to be printed separately in whatever colors you like, and then put assembled. You will need to glue stuff. Also, feel free to get different wheels... this just a stopgap until I find some actual hobby wheels and axles that are more sturdy. Finally, if you want to go for authenticity, try printing the side cars with yellow for the first 3mm and then switch to red for the last 2mm. It'll give you the two-toned look in the render. (If you have a dual extruder... solve your own problems ;) If you want other DT playsets for your figures, I made a royal castle also! http://www.thingiverse.com/thing:624561