The Boss Buck 12V Auto System Feeder has a thick wall HDPE UV protected plastic that will not rot, rust, or leak! Our versatile feeder is roto-molded, which is the same process used to make whitewater kayaks. Our double-walled hatch LID tops this easy-to-use system feeder off in style, and function. Built oversized, this lid allows the hopper system to breathe, thus eliminating condensation while achieving ambient temperature faster than steel or fiberglass feeders.