The Boss Buck BB-1.6.P Gravity Feeder has a thick wall HDPE UV protected plastic that will not rot, rust or leak! Our versatile gravity feeder is roto-molded, which is the same process used to make whitewater kayaks. This maintenance free hopper system, with 84 in gravity feeder legs is a top seller in our line. With our patented protein/gravity head, you get the most moisture-resistant feeding system available on the market today! The custom-designed gravity head features a 10 degree angle, and a 1 in overhang on the 4 feed ports. Each feed port is 8 in long and has a drain hole to disperse any water that enters the tip of the feed port. Our double-walled hatch LID tops this easy-to-use 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.