Upgrade your YS640 from a standard cart to a competition cart. The competition cart, with its 8" pneumatic casters, offers maneuverability that the standard cart cannot match. If you're moving your cooker a lot - on your patio OR to barbecue competitions on the weekend - this cart makes life easier (and a little more stylish, too). It's painted with high-temp paint and a clear coat is added for durability and ease of cleaning. There is a set of tie-down rings on the bottom to keep the cart immobile on your trailer.