The Composite Plastic Flat Idler Pulley 13-10155 is a durable and lightweight pulley designed for lifting machines and rigging applications. Made from a composite plastic material, this pulley offers a smooth and quiet operation, making it ideal for material handling tasks. Its flat design allows for easy installation and ensures that it fits securely in place, providing a reliable performance for your lifting needs. With its sturdy construction and efficient design, this pulley is a valuable addition to your lifting machine hardware collection.