Rock N Roller Multi-Cart R10RT Max with Deck and Shelf Instantly transforms into eight different configurations Carries huge load capacity, yet folds small for storage Lightweight, rugged and ergonomically efficient steel frame No removable pins to lose Caster brakes assist loading on inclines Expandable frame adjusts to load size and shape Foldable sides rotate and lock into place via release cables Removable Shelf Kit instantly transforms carts into a mobile workstation Solid Deck accessory prevents small items from f The RocknRoller Multi-Cart R10RT Max with Shelf and Desk package includes the RocknRoller Multi-Cart R10RT Max, the RocknRoller RSH10 Shelf Kit, and the RocknRoller&nbsp;RSD10 Solid Deck Kit RocknRoller Multi-Cart&nbsp;R10RT Max&nbsp; The RocknRoller Multi-Cart&nbsp;R10RT Max moves an amazing amount of gear This professional equipment cart is the world's most innovative moving machine The RocknRoller Multi-Cart R10RT&nbsp;has a frame expands and unfolds to accommodate innumerable cargo types and instantly transforms Into any of eight configurations