About this item Wide Range of Application: Two pack replacement inner tube for 13x4.00-6 tires, like wheelbarrows, Razor Dirt Quad Lawn Mowers, ATVs, yard tractors, snow blowers, lawn mowers, yard trailers, go carts, wood chippers and more Heavy Duty Premium Natural Rubber: Our inner tubes are made of natural rubber with a thickened finish to better absorb impacts, are less likely to be punctured, and have a longer overall service life, making them more suitable for use on lawns Excellent Airtightness: Our inner tubes inflate smoothly and have excellent air tightness. The valve seat is thicker and stronger to prevent tearing and breaking, eliminating the hassle of frequent inflation and saving you time Safe and Comfortable to Use: Engineered to seal punctures, our wheelbarrows inner tube provides exceptional durability while effectively preventing damage from vandalism and minimizing the risk of injury, suitable in weather condition Ease of Installation : Our replacement 4.00-6 inner tube with TR-13 straight valve stem is easy to install. Just a short, simple change and you're back on the road › See more product details