Universal Fit 4.10/3.50-4 Air Filled Hand Truck/utility Tire, 5/8" Bea
They are also non-marking and will not be affected by Ozone or UV rays. Airless Tires are made of lightweight, solid polyurethane foam and are to never go flat. Tire is 10. 25" offset hub and 5/8" Ball Bearings.