1.SIZE: Premium 4.10/3.50-6 or 4.00-6 inner tube 2.Replacement for wheelbarrows, garden and , lawn mowers, , hand trucks, trailers, dollies, , wagons, generators, snow blowers, pressure washers, air compressors, wood chippers and more 3.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 4.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 use 5.EASY INSTALL Measurement: 4.10/3.50-6 or 4.00-6 Feature: Inflatable Valve: TR87 bent metal Valve Stem colour:black Material:rubber Package Contents: 2 * Inner Tube Only 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.