Keep your lawn looking healthy & your lawnmower in top condition, by replacing the blade when it becomes dull & worn with this high-quality Wilko Replacement Lawnmower Blade. This 400mm mower blade is a direct replacement blade for the Wilko 98.5cc Hand Propelled Petrol Moweror the Wilko 118cc Self Propelled Petrol Mower. Over time, dirt & other garden debris can erode the blade, causing the metal to weaken & become paper thin. If you notice this, you should replace the blade immediately. Metal blades should be checked regularly for signs of wear, damage & balance. A blunt blade will harm the grass & an out of balance blade will harm the lawnmower, so ensure proper cutting performance from your lawnmower with this replacement 400mm mower blade.