Helps eliminate winding and tangling of rope and cable during pull. Connects grip and pulling rope. All stainless steel body construction. Efficient thrust and roller bearing construction allows smooth rotation, even under full load. . Clevis pins are "shoulder bolt" style, so load on both sides of clevis is taken on the shoulder, not on the thread. Select the swivel with a maximum rated capacity that meets or exceeds the cable puller's maximum pulling force.