The Pioneer 4 scooter is a heavy-duty four-wheel mobility scooter. The Pioneer 4 is perfect for customers with an above-average build holding up to 400 pounds! With a comfortable 20” seat, this scooter will offer the rider all-day comfort with its thick-cushioned captain’s seat and headrest. The Pioneer 4 four-wheel is a very supportive mobility scooter that has been designed to make it easier to get around indoors or outdoors while traveling.