Nu-Wave Manufacturing 660-EL 6-Feet  Elite Scaffold with 5-Inch  Casters, Yellow Automatic Positioning Platform with 1,000 lb. Weight Capacity and Stacks to a Max. of 18' Elite PIC-5 5" Locking Caster 29-1/2" Wide End Frame Access Ladders Allows Scaffolds One person can assemble without tools and adjust platform height in 4 " increments in a matter of seconds