RITKEEP Aluminium Pulley wheels Upgrade KitUpgrade your cable pulley system with Aluminum Pulley Kit. These pulleys deliver a smoother, quieter, and more durable performance than standard nylon pulleys. Minimizes rope wear to the greatest extent. Product Features Seamless performance for an enhanced workout. Focus on training in a peaceful setting. Crafted from premium aluminum for durability and a smooth finish. Please noteOne set is all you need to replace every pulley.