Adding these pulleys to your batting cage cable kit will make it work much more smoothly. These nylon pulleys are very heavy duty. They also work well for dog runs. They are easier on the PVC coated aircraft cable than metal pulleys. The pulleys are a 1 3/4 inch diameter fiberglass reinforced nylon with heavy-duty zinc-plated steel straps. The composite wheel is very strong, will not corrode, and is self-lubricating. You can also attach a rope or a cord between a zinc snap clip and the pulley so that you can keep your cable runs closer to the ceiling. These pulleys will help your batting cage net roll more easily and quickly. Returned items may subject to a 20% restocking fee.