REPLACEMENT WHEELBARROW WHEEL: 14.5″ diameter wheel fits tire sizes 4.80/4.00-8 in., 4.00-6 in., 4.00-8 in., and 3.50/2.50-8 in. and is a perfect fit for most wheelbarrows and other lawn equipment FITS DIFFERENT HUB SIZES: Comes with a 3″ centered hub and an adapter kit to fit hub lengths up to 7″ that includes two 1″ wheel spacers and four 1/2″ wheel spacers to accommodate various hub sizes FITS DIFFERENT AXLE SIZES: Accommodates axles up to 4″ and will fit both 5/8″ and 3/4″ axles KNOBBY TREAD: Pneumatic, air-filled tire features knobby treads with a 4 ply rating to tackle uneven ground while landscaping 350 LB. CAPACITY: High load rating ensures this wheel will support any heavy tools and gardening materials you need to transport in your wheelbarrow