The Metal Movers Appliance Movers are constructed out of heavy duty steel and are made to move any object up to 1600lbs per set. Easily move heavy objects over uneven surfaces with the 2" non marking rubber casters. The Metal Movers have platforms that measure 6" x 8 3/4" and are covered in heavy duty rubber padding. Each of the Metal Movers measure 23" closed and can expand to 37 1/2" fully extended. The Metal Movers are sold in a set of 2 on Carpetstretcher.net.