General description The 2Pcs Inner Tube - 4.10/3.50-4 is designed for various applications including wheelbarrows, lawn mowers, strollers, generators, and garden carts. Made from isobutylene rubber, this inner tube offers superior air sealing, elastic cushioning, and aging resistance compared to natural rubber. It features a non-removable design and a high-performance curved TR87 valve stem. Technical specifications Size: 4.10/3.50-4 Maximum pressure: 30 PSI Material: Isobutylene rubber Usage Inflate the inner tube only with a hand pump to ensure optimal performance. Other information