MAINERO is the innovator of independent row corn harvesting. The MDD head is spaced at 20" row width and comes in 20', 25', 30', and 35' widths. The 20" spacing along with the patented double sprocket and snout designs are what allows the MDD to pick any row spacing corn and twin row spacing. The rugged durable design boasts a heavy metal frame and stainless steel snouts. The stainless steel snouts provide excellent durability when picking across rows or any spacing. The heads are made to be put on ALL major brand combines and can be converted to a different brand if needed. THIS HEAD IS THE FUTURE OF CORN HARVESTING.