I was in a need for a trolley that was sturdy enough, with a stability better than other trolleys, and reliable when it comes to move heavy items. The construction itself is made out of really heavy duty wheels and some kind of good heavy metal frames which makes the stability more reliable. In my case, to transport heavy Orange speakers 4x12 without have to be worried about the load to fell off due to a wobbly construction. This feel really safe with good quality, as always, from Gravity. Thanks to the swedish Thomann staff for good support.