General description These Wheelbarrow Inner Tubes are designed for various carts including hand carts, transport carts, garden carts, and lawn mowers. Made from high-quality butyl rubber, they offer superior waterproofing, elastic cushioning, and aging resistance compared to natural rubber. Technical specifications Material: Butyl rubber Size: 4.80/4.00-8 Maximum air pressure: 30 PSI Quantity: 2 pieces Other information Features a TR13 curved valve stem for easy inflation High-quality valves help maintain air pressure Recommended to avoid sharp objects to prevent punctures