BArnold 4903280006 Tire Inner Tube, 8-Inch (Discontinued by Manufacturer) ReviewbP PP Arnold 4903280006 Tire Inner Tube, 8-Inch (Discontinued by Manufacturer) PTire inner tubePStraight shaped valvePFor 2 or 4 ply 16-inch wheelbarrow tirePMeasures 4-inch by 8-inchP