Optional fenceline adapter for Big Wheel feeder model RF1. 2 required per feeder. Use if feeder is required in the fenceline with 52.5-in. opening. Attaches securely to the trough divider and crossbar. Tubes line up with fence panel and drop rod (not included) holds feeder in place. Easily remove the feeder for cleaning. Includes inner and outer frames and fasteners. Made of strong steel with white gloss enamel finish.