Made from tough roto-molded plastic that will not rot, rust or leak. Patented design features an internal cone that dispenses feed evenly to 3 feed ports. The 3-way inner sleeve allows control of feed flow. Double wall hatch lid allows the hopper system to breathe thus eliminating condensation while achieving ambient temperature faster than steel or fiberglass feeders. Feed tubes have 10 degree angle and 1" overlap on top of each port. Feed ports are 10" long and 4" deep with drain holes.