<p> This provides a sturdy fit and prevents damage to the steel ring and inner tube. Perfect for 4.10 / 3.50-4" wheels or tires: Replacement tubes for 4.10 / 3.50-4" tires/wheels (10" outer diameter). Application: 4.10/3.50-4" inner tube works with wheelbarrows, strollers, generators, lawn carts, lawnmowers, small tractors, garden trailers, snow blowers, pressure washers, and most 10-inch 410/350-4 wheel applications. Equipped with Valve: Heavy-duty inner tube with TR87 angled valve stem, ISO 9001 certified isobutylene isoprene, which is superior to natural rubber in terms of airtightness, elastic damping, and resistance to aging. Note: Maximum inflation is 30 PSI. Inflate only with a hand pump. The spare tire is equipped with a tire lever that allows the stem to be suspended after the tire is rotated, providing a secure hold and preventing damage to the steel ring and inner tube.</p>