The Toro Reelmaster 3550-D is a lightweight, diesel-powered fairway mower designed to follow contours for a high-quality cut on uneven ground. Key features include a 2.1m cutting width, turf-friendly tires, a Series/Parallel 3-wheel drive system for superior traction, and a 24.8 hp Kubota diesel engine. It is built to be gentle on the turf and efficient to operate, with features like Dual Precision Adjustment (DPA) cutting units that require less maintenance.