Extra large durable poly ground feeder features rounded edges for animal safety and grain feeder inserts on each side. These inserts bolt into the feeder securely and the top lip of the feeder keeps the bolts from being exposed. The grain feeder inserts serve the dual purpose of allowing you to feed grains or minerals and easily monitor the consumption and simply having them installed dramatically reduces feed waste by limiting the horse's ability to toss feed out of the feeder. Durable impact resistant poly construction with UV protection ensures this feeder will hold up to years of use in harsh elements. Mounts easily to wood stall walls by simply using lag screws or it can be attached to pipe panels with our MB-20, mounting bracket kit. Whichever route you choose for installation, make sure to place washers over the lag screws or bolts for more surface contact and support.