These truck model feeders may be mounted in the back of a pickup, or they can be mounted across a flatbed. The trailer model feeders hold 3000lbs. of 3/4 inch cubes. These feeders will feed in piles at 10 ft. intervals of in a steady trail of feed. You can set the feeder to dump from 2 to 8 lbs. per pile. These feeders are capable of handling cubes, any size, ground feed of any combination thereof.