Minimize your downtime with Marathon Flat Free tires. This 20" x 2" version is made of solid polyurethane foam that offers the bounce, performance, and handling characteristics of regular tires but with the added benefit of never going flat. It's a perfect size for garden carts, trailers, and marina carts. It has a 250-pound load capacity, and it's non marking, meaning your shop floor will stay nice and clean. | Marathon Industries 20x2" Flat Free Cart Tire