Ultra-Durable, High Load-Bearing: No longer worry about tire leaks or blowouts. This solid PU tire can save you the trouble of inflating and repairing tires and can be used freely on various surfaces and terrains. Each tire can withstand up to 300LB of weight Perfect Replacement for Universal Tires: These wheels have an outer diameter of 10 inches, a tire width of 3.5 inches, and a hub diameter of 4 inches, making them a perfect substitute for 4.10/3.50-4 "tires and wheels. Comes with washers and cotter pins for easy installation High-Quality Material: These tires are made of high-quality PU material, the wheels are made of premium-quality steel, and the bearings are made of carbon steel. The sturdy and durable structure provides our tires with wear-resistant, anti-slip; puncture, tear, and decay-resistant effects Serrated Tread and Ball Bearings: The serrated tread provides more grip for the tire, while ball bearings provide flexible steering force and reduce friction and support the load, allowing you to work better and save more effort during use Suitable for Most Hand Trucks: The 5/8-inch axle hole makes these 10-inch PU tires suitable for various devices such as gorilla carts, garden carts, wheelbarrows, yard trailers, dollies, trolleys, wagons, etc BIEAMA 10" Solid PU Flat-Free Tires and Wheels Size: Outer diameter-10 inches Tire width-3.5 inches Hub diameter-4 inches Material: Tires- High-quality PU material Wheels- Premium-quality steel Bearings - Carbon steel Suitable: Perfect substitute for 4.10/3.50-4 " tires and wheels, such as gorilla carts, garden carts, wheelbarrows, yard trailers, dollies, trolleys, wagons, etc Caution: Not for high-way use, the maximum speed cannot exceed 5 km/h