The Mobile Urban Chicken Coop with Chicken Run includes the large tractor wheels and K9 Kennel unique wheel jack system. Unlike most chicken tractors with small wheels that cut into the ground and are very hard to move around. Chicken Condos tractor wheels are large worry free wheels that will not go flat and have large knobs on the tread to help in traction. They sit on top of the ground and are easy to move around on dirt as well as grass. K9 Kennel unique wheel jack allows for the tire to be raised up out of the way allowing the coop to sit flat on the ground unlike most tractors that sit tilted to where the wheels are located. The benefits of having Chicken condos mobile wheel system is you can move your coop and run around your yard allowing the chickens to directly fertilize an area as well as eliminating all weeds and bugs. Plus it is convenient when mowing the lawn or needing to move the coop for any reason.