Models accommodate 6 through 27 foot windrows (self-propelled straddle type and pull-behind) with both belt driven and hydraulic machines available. Patented independent suspension and track design that “floats” the machine across varying surfaces. Multiple drive system options: four wheel drive, full track (14-30 inches wide), rubber tires, and drive tires in front with castors in back or transverse configuration. Eight flail designs, six drum sizes and multiple configurations.