JamStands Series Karma Cart Series Adjustable Professional Equipment Cart - Medium Size. The Karma Cart Series from JamStands by Ultimate Support redefines the concept that good things happen to hard working musicians and sound engineers! If you've ever hauled a heavy guitar amp, set of speakers, drum kit, or an 88-note keyboard, you know how wonderful the invention of the wheel can be. The Karma Cart Series offers not only a set of wheels and platform but it's a reconfigurable tool that transforms into eight different equipment carts and hand trucks with very little effort!SpecsCapacity: 300 lbs. (136 kg)Configurations: 8 VariationsFinish: Powder Coat, BlackLength: 27.5" - 44.25" (699mm - 1124mm)Width: 17" (432mm)Height: 24" (610mm)Weight: 26 lbs. (11.8 kg)