Load-ins and load-outs are undoubtedly the worst part of the gig. Either you re sweating before you play or dreading the number of trips you ll have to make after the gig through long corridors, cellars, and staircases, or the length of several football fields. Rock n Roller s R12 All-Terrain Cart makes load-in a breeze! Instantly transforming into any of 8 configurations, it features rugged steel construction, durable finish, and stair-climber bars.The R12 now features G-Force wheels high-tech polymer hubs, pneumatic tires with tubes, and roller bearings. They are 40% lighter than the old steel hubs and come in hot colors. The R12 carries up to 500lbs./32 cu. ft. on a frame that extends from 34"-52" in length with 32" (front/rear) foldable sides. It rolls on 10" x 2" rear wheels and 8" x 2-1/2" front pneumatic swivel casters (w/o brakes). Weighing 36 lbs., the R12 carries huge loads but folds small to fit in the trunk of a compact car.R12 configurations: Storage-Transport, Short Furniture Dolly, Short Platform Cart, Short Hi-Stacker, Long Hi-Stacker, Long Platform Cart, Long Furniture Dolly, And 2-Wheel Handtruck. Applications: Photo/video, large PA s, lighting systems, keyboards