This wiper works like a charm. Pulls easily behind your 4 wheeler. You will need a tank with pump on the 4 wheeler for roundup. Manual height adjustment. Easy to disassemble for storage. I added spacers to the 4 wheeler tires and put narrower tires on the rear to follow the drill rows leaving no tracks. It also works fine without trying to stay between rows. It obviously lays some wheat down but a surprising amount stands back up enough to harvest in a couple days. Go to www.smucker.net for manufacturer info. Message me for questions or contact info.