Our wheel inner tubes are ideal for heavy-duty use when moving loads with your wheelbarrows, sack trucks, hand trucks, trolleys, carts, dollies, etc., even on uneven grounds. Made of durable, abrasion-resistant rubber with a metal valve, this replacement inner tubes are very easy to inflate. Moreover, the spare inner tubes can be easily installed into the tires of your wheelbarrows, sack trucks, hand trucks. Delivery includes 2 inner tubes. - Berkfield Home Wheelbarrow Inner Tubes 2 pcs 15x6.00-6 Rubber in Black