When trimming taller weeds and more dense vegetation, this large deflector helps provide protection from flying debris in challenging trimming circumstances. For use with nylon line trimming heads and some metal blades. See your STIHL Dealer for details. This 420 mm deflector fits the following models: FS 55 R, 55 RT, 55, 80 R, 80, 83 R, 83 RT, 83, 85 R, 85 RT, 85 RX, 85, 90 R, 90, 110 RX, 110 R, 110, 120 R, 120, 130 R, 130, 200 R, 200, 240 R, 240, 250 R, 250, 310, 350, 450 K.