ELA Enterprises,LLC Dollies come in all shapes and sizes. There doesn’t seem to be a “universal term” for the word dolly. In fact, it’s difficult to determine where and when the word originated. Often referred to as a hand truck, cart, roller dolly, 4 wheel dollies, or simply “wheels”, most agree that this is a very important piece of equipment. If you use dollies in your operation, you can appreciate the “heavy lifting” this work horse provides. Application: Whether used to transport food trays , bakery trays , attached lid containers , large pallets, trash cans, or liquid containers, finding the right dolly will give you great flexibility. Investing in this relatively inexpensive piece of equipment typically pays for itself quickly; ROI is captured in a short period of time. Caster: One of the most important things to consider is the type of caster. Determining which surfaces it will be used and the weight capacity, will help decide the type of caster