Junior Film Cart

It is almost always used in the 4 wheel configuration, but can be quickly folded and disassembled for storage or transport. The truck has large pneumatic wheels and two large braked  pneumatic castors near the handle. Each truck is fitted with two carpeted shelves. The shelf length is 1190mm and the width is 670mm.

https://www.filmgear.net/image/catalog/Spec/07Cinegear/Trolley/info_01_Trolley_eng20220516.pdf