I had a cart just like that once from Harbor Freight, had a teller drop some boxes of halves on it and literally caved it in half lol. So i made her keep handing them over the counter from then on, she kept asking if i would bring in a cart and i said NOPE, somebody broke my other one, and the only reason i bought it was to help them out =(. I got the other one from harbor freight that is made of aluminum and expands, i just leave it collapsed down for more durability and put a thin board on the bottom. The new cart is a house and very durable. That other girl still hands them over the counter though hehe.