Non Genuine Replacement Lawnmower Blade Metal Cutting Blade 40cm Length Pack of 1 Suitable for Bosch Advanced Rotak 650, Universal Rotak 650, Rotak 40 Also Fits Qualcast Power Trak 400, 4000 Compatible with the following models: Bosch Rotak 40, Rotak 650, Universal Rotak 650 Qualcast Power Trak 400, Power Trak 4000