This wheel assembly is a durable replacement part created for use with snowblowers, lawnmowers, and other yard equipment. The wheel is the component on the machine that makes it easy for it to be transported and moved around a location. On lawnmowers, it helps with cutting height adjustment to ensure the grass is cut to the right length. It comes with all the components needed to replace the wheel with the exception of required tools.Sometimes wheels can become damaged or will malfunction and require replacement. A visual inspection of each of the wheels will give information about whether a replacement is required. If there is lots of damage or the wheel is broken, it has to be replaced before the lawn tool can be used. The old wheel will need to be removed before the other wheel can be placed. This may require the use of a socket set, wrench set, and screwdriver.This is a genuine OEM replacement part sourced directly from the manufacturer. It's made of durable plastic and is sold individually. The wheel assembly is compatible with lawnmowers, snowblowers, and tillers by MTD, Craftsman, Huskee, Yard-Man, Yard Machines, Bolens, and Troy-Bilt.