The Stem Caster Wheels 2 Inch by Branded is a set of 4 heavy-duty threaded stem casters with a 3/8" screw diameter and 1" length. These blue casters are made of polyethylene, polyurethane, rubber, steel, and wood, making them durable and versatile for various material handling needs. The 2-inch size and stem mount style provide stability and easy mobility, perfect for industrial and business applications. With a compact package dimension of 6.81 x 6.34 x 2.24 inches and a weight of 2.45 pounds, these casters offer a reliable and efficient solution for transporting items in a professional setting.