Pair of 2 (two) Firestone 4.10/3.50-4 Inner Tube with TR87 Bent Metal Valve Stem Perfect for fixing flats without replacing the tire. Quality Firestone 4.10/3.50-4 inner tube. Bent metal TR87 valve stem. Pair of 2 (two) inner tubes Fits on a 4 inch rim sized tire - review sizing closely