The new Buckingham’s innovation is ready: the Buck Side SwivelTM. The Buck Side SwivelTM is a heavy-duty aluminium single sheave pulley that has a 5/8’’ diameter rope capacity with a 2,500 Lbs working load limit. Its plate allows the rope to be installed or removed without disconnecting it from the anchor point. Swivel aye prevents twisting of ropes. Ideal for building mechanical advantage with the Ox BlockTM .