Toro ROPS rollover protection system kit 79485 and the use of an accompanying seatbelt can prevent an operator from being thrown from a machine or pinned under the mower should it overturn. There is no rollover protection when the roll bar is in the down position. Do not wear the seat belt when the roll bar is in the down position. When it comes to reliability, Toro delivers replacement parts designed to the exact engineering specifications of our equipment. For peace of mind, insist on Toro genuine parts.