Vertical head and rack case made for amplifier and mixer,with a stand by sideand 4rings on top for putting microphones .Constructed with 9mm plywood glued with 1mm fireproof laminate,1.5mm aluminum extrusions,and some other solid and durable hardwares.Size is optional.Cases are designed to meet your requirements.Remarks: We provide custom made service.The color and the casters of the case are optional to your favorite.In addition, you can change the structure too if you think it needed.