LOT OF 2 (TWO) Deli Brand Tire Inner Tube with TR13 Rubber Valve - 4 inch Combination Size fits 4.10/3.50-4, 410/350-4, 4.10-4, 410-4, Fits Sizes: 410/350-4, 410-4, 350-4, 11x4.00-4 Tube has Standard TR13 valve stem: Straight rubber valve, the most common stem style, measuring approx. 1.38" long and used in the standard size wheel hole of approx. 1/2"