We baught this trailer and a dump truck made by Bruder for my 4 yr old son for x- mas. I know you can purchase the items together as set, but my husband thought a different dump truck looked cooler, so we purchased the items seperatly. Both the trailer & the back half of the dump truck looked identical to the truck & trailer in the set, so we thought it would all hook together. Wrong! The hole on the trailer is too small to fit the hitch on the dump truck. It was very hard to explain to our son why Santa brought him a truck & trail for x -mas that doesn't fit together. We have since modified both dump truck & trailer to make them fit together.
As for the quality of the trailer, we are pleased. My son is not gentle on toys & loves to drive in dirt & mud, and so far it has held up. He also loves that 3 sides fold Down & he can haul lots of stuff. So far we are pleased, now that we modified it to work with the dump truck.