The sturdy metal Cradle for the Primo Oval Junior gives you durability and mobility. Each cradle has 4 revolving wheels, 2 of which are lockable. The Primo Oval Junior is very heavy and we don't suggest using the cradle if you have the need to roll the Junior more than a few feet. We do suggest having a couple of people handy to help stabilize the grill during moving. Be safe and be cautious.