20ft & 12ft trailer with texas wide rolloff frame. Top frame rollers, instead of standard side rollers. 47" outside width frame verses 34" west coast standard frame. Tow truck style hook at the end of winch cable instead of pear link for rolloff box hooks. Reeving hydraulic cylinder winch system instead of drum electric winches, 3/4" & 5/8" thick rolloff cable, instead of a 1/2" that wraps around a small winch drum & gets squashed, twirls & like a dangerous spring if the cable is let loose out of you hands. A true rear hinge. Not door style hinges stacked 4 or 5 across on the rear cross member. Honda engine driven hydraulics, verses electric over hydraulics that drains battery power after many container pickups per day usage. Welded hydraulic cylinders verses tie rod style that has 4 long rods to tighten the end caps. They are prone to stretch & leak down the road. Higher dumping angle to get the debris out of the container. Hoist cylinders are facing forward to get more leverage, verses picking up the center of the rolloff frame area.