Universal fit polyurethane flat free wheelbarrow tire comes with a 3 In. hub and 5/8 in. bearings as well as a parts kit that includes: (4) 1/2 in. spacers, (2) 1 In. spacers and (2) 3/4 In. ball bearings allowing it to fit virtually every wheelbarrow. Easy-to-install with a minimal amount of tools required. Easy-to-read installation instructions on back of package. Tire fits 2-wheel wheelbarrows, lawnmower trailers, and garden carts. Replaces the following tire sizes: 4.80/4.00 x 8 In., 4.00 x 6 In., 4.00 x 8 In., and 3.50/2.50 x 8 In.