Valve Type: Bent Metal Valve Stem.
4.10/3.50-4 Replacement Inner Tubes: It fits for 4.10/3.50-4" tires / wheels(10" outside diameter), like lawn mowers, hand trucks, wheelbarrows, yard trailers, dollies, trolleys.
Heavy-duty Material: The Inner tubes are made from premium rubbers. These inner tubes are ideal for garden and home.
Maximum Inflation: 30 PSI. Only inflate with manual pump to avoid overfilling.
Notice: Not for highway use.