Marathon Industries Universal Fit Flat Free Wheelbarrow Tire Type: Wheels & Tires Features: Made of lightweight, durable solid polyurethane Black in color, ribbed tread; kit includes 3/4-inch nylon bushings and spacers to accommodate various hub lengths 300-Pound load capacity Comes standard with a 3-inch hub and 5/8-inch bushing; not for highway use Includes easy to install adapter kit to fit most wheelbarrows and other small lawn and garden equipment