Eliminate downtime with the COSCO 10-Inch Flat-Free Replacement Wheel for Hand Trucks. Made of solid polyurethane, this wheel will never go flat. It features heavy-duty ball bearings, and a 5/8-inch axle bore. Supports loads up to 400 pounds. Comes with a 5-year limited warranty. Life is a story: a collection of moments, told one memory at a time, shared with people we love. And for over 80 years, COSCO has been proud to be part of that story, offering products that improve and simplify your everyday life. Whether you are moving, painting, redecorating, hosting guests, or simply relaxing outdoors, we have you covered. As life unfolds, we will continue to deliver products with practical and innovative designs. It's our promise to you. COSCO. Smart. By Design.