The Mustang Pro MPM-X85U-LS Mobile Carts and Floor Stands for 50" -- 90" LCD and Plasma TVs with a 300 lb load rating. Mustang AV's heavy duty mobile cart for extra large displays is made for high traffic environments. Choose from a variety of preconfigured models or build your own specific configuration a-la-carte. Side shelves are designed for heavy use of presentation laptops and can be vertically adjusted without the use of tools as well as swiveled continuously up to 45#176; in front or behind the display. Side shelves also easily retract for transport and storage. The solid front/back shelf can be mounted either in front or behind the display at any height position.