⊙ DIMENSIONS: Wheelbarrow tires are 13 inches and tire width is 3.5 inches. Accessory Size: Flat free tires come pre-installed with 5/8" inner diameter center bearing, and comes with additional 3/4" inner diameter center bearing for replacement. The size is compatible with tires between 13" and 16". Perfect replacement for 4.80/4.00-8, 4.00-8, 4.00-6, 3.50, 2.50-8 inches tires,⊙ SOLID TIRES - NO NEED TO INFLATE: Solid rubber tires are made of polyurethane foam, so you no longer have to worry about punctures. Also equipped with steel rims. Whether they are exposed to sunlight or rain, dry or wet, the 13 inch solid tires will not rot or become flat. (Maximum 300 lb load capacity, note does not apply to static loads),⊙ WEAR-RESISTANT & ANTI-SKID PATTERN: Wheelbarrow rubber wheels tread pattern is different from vertical stripes. This pattern can prevent the cart from slipping on various terrains and roads. The upgraded tread texture is deeper, thicker and more wear-resistant, extending the life of the 13 inch wheelbarrow tire.Improve the stability, maneuverability and carrying capacity of the cart. Silver wheels rim are elegant and beautiful, perfect garden gifts,⊙ SUITABLE FOR A VARIETY OF CARTS: 4.00-6 wheelbarrow tires perfectly compatible with your wheelbarrow, garden cart, lawn mower, hand truck, snow blower, garden utility cart, sack cart, wheel barrel, generator, universal replacement tires, etc. (Note: Not applicable on highways),⊙ ADJUSTABLE ADAPTER KIT: This flat free 13 inch tires comes pre assembled with two 5/8" carbon steel bearing and comes with 2 additional 3/4" bearings. Comes with two 0.5" and two 1.5" wide nylon spacers. Adjust hub length: 1.75"- 2.25"- 2.75"- 3.25"- 3.75”- 4.25“- 4.75”- 5.25“- 5.75”. 24-HOUR CUSTOMER SERVICE, If you have any questions, please feel free to contact us