Sturdy heavy and holds itself up - I'm using it as a tray for various DI boxes and a pedal sized preamp in my rack box. It does this well,It also provides somEwhere to lay your coiled up cables and take the weigh of them off their jacks etc. Its quite heavy so does add noticeable weight to your box.Im happy with it though and would buy it again and recommend it to anyone buying this type of kit.