1.SIZE: Premium 4.10/3.50-6 inner tube2.Replacement for wheelbarrows, garden and utility carts, lawn mowers, tractors, hand trucks, trailers, dollies, trolleys, wagons, generators, snow blowers, pressure washers, air compressors, wood chippers and more3.HEAVY DUTY: Made from isobutylene isoprene rubber, NOT recap, which is better in air tightness, elastic damping and aging resistance than natural rubber. Heavy duty and durable4.NOTE: Please check the size of your equipment's existing tire/tube. If it is the right size, it should work just fine. Not for highway use5.EASY INSTALLMeasurement: 4.10/3.50-6Feature: InflatableValve: TR87 bent metal Valve Stemcolour:blackMaterial:rubberPackage Contents:4 x Inner TubeOnly the above package content, other products are not included.Note: Light 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.