Roll trailer

Have you ever seen a big truck carrying a long flat thing that's not a box or container? That's called a roll trailer. A roll trailer is used to transport things like big machines or heavy equipment that are too big to fit in a box or container.

Imagine you have a big toy car that you want to move from one place to another, but it won't fit in your toy box. You could put it on a big flat trolley and roll it from one place to another. That's basically what a roll trailer does but on a much bigger scale.

Roll trailers are like big flatbed carts with wheels, but instead of having a driver, they are pulled by a big truck or tractor. They have no sides or roof, so they allow large items like machines, cranes, and other heavy equipment to be loaded on and off easily with a crane or forklift.

So, when you see a roll trailer, just remember that it's a big flat cart that is used to move big and heavy things that won't fit in a box or container.