KYNAST compatible lawn mower blade for lawn mowers 40 cm petrol and electric year 85 to 89 Features: Length (mm): 389 Centre hole (mm): 20.3 Outer hole (mm): 10.2 Centre/centre distance (mm): 40 Weight:610 g 13286764 Code : Reference code : 110.001.335, 110.001.336, 00.3007.40, 3R1664 KYNAST