The Marathon 4.10/3.50-4" Flat Free All Purpose Utility Tire on Wheel is a durable and versatile caster accessory designed for material handling in a variety of industrial settings. Made of polyurethane material in a sleek black color, this unit features a 10" length, 10" width, and 3" depth, providing stability and maneuverability for easy transportation. With a centered 3.5" wheel size, this product from Marathon Industries offers reliability and performance for your caster needs. Brand new with box. Buy with confidence. See pictures as this is the item you will receive