The STIHL RZ 972¡ (WB05-011-3610-US) is a commercial zero-turn ride-on mower built for hard work, featuring a 72-inch deck and a four-wheel suspension system designed to deliver a smoother, more stable ride across uneven ground. It uses a Vanguard Electronic Fuel Injection (EFI) engine with Oil Guard for efficient performance and extended maintenance intervals, with heavy-duty, commercial-grade components for demanding mowing jobs.