General description Made from premium heavy-duty rubber, these inner tubes are designed for durability and are suitable for home, professional, and commercial use. They are an ideal solution for replacing flat tubes without the need to purchase new tires. Technical specifications Size: 4.10/3.50-4 Material: Rubber Color: Black Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with wheelbarrows, lawn mowers, tractors, hand trucks, garden carts, trailers, dollies, trolleys, generators, snow blowers, pressure washers, air compressors, wood chippers, and more. Fits specifications: 4 inch Tire, Trolley Tube, Snow Blower Tube, Tr87 Inner Tube. Usage Replace flat tubes in existing tires to restore functionality without needing to buy new tires. Other information Package Contents: 6x Inner Tubes Note: Light reflection and different displays may cause the color of the item to differ slightly from the real thing.