Arnold Marathon 14.5 Universal Flat-Free Replacement Wheelbarrow Wheel Universal, flat-free wheel fits most wheelbarrows and other lawn and graden equipment ncludes two 1" wheel spacers and four 1/2" wheel spacers to accommodate various hub sizes Includes two 3/4" ball bearings Knobby tread Replaces 4.80/4.00-8, 4.00-6, 4.00-8 and 3.50/2.50-8 tires