Feature:1. Strong Rubber: Made of high quality rubber material which is stable with strong scalability, suitable for part replacement.2. Comfortable Riding: Rubber inner tube will absorb vibrations on bumpy roads to ensure a comfortable and safe ride, improving your experience.3. Standard Tube: Can meet the standard air pressure, has higher safety performance and longer service life than ordinary ones.4. Size Tip: Fit 18in wheel rim and tire of from 8.5in to 9.5in wide, please check the size to make sure this tube will fit you model.5. Suitable Situation: Suitable for golf carts, lawn mowers, trailers, trolleys, to replace the old or damaged inner tubes.Specification:Item Type: Inner TubeMaterial: RubberColor: As ShownAir Valve: Straight ValveApplication: For Golf Carts, Lawn Mowers, Trailers, TrolleysWeight: Approx.900g/31.7oz.Package List:1 x 18x8.50/9.508 Inner TubeNote:Before installing the inner tube, check that there is no burr at the rim mouth and the tyre mounting tool is not sharp to avoid puncturing or prying the inner tube.