This tire fits for 4 inch rim hub, it means the rim outer diameter is about 4 inch(102mm)The maximum inflation pressure (I.): 24P.S.I , 4PLY Rating, Not for Highway ServiceManual Measurements Are Only for Reference): Tire Size: 4.10-4 410-4, Tire Outer Diameter(without air-filled): 260mm (10.2inch), Tire Inner diameter: 102m (4inch), Tire Side width: 85mm (3.35inch)Usable with lawn mowers / , hand trucks, wheelbarrows, garden / utility / flat carts, yard trailers, dollies, , wagons, generators, snow blowers, pressure washers, air compressors, wood chippers and moreMaterial: rubbercolour: blackPackage Contents: 4 x Inner Tube TireOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.