THE SMOOTH CUTTING IMAGE: Thanks to their thickness of 0.85 mm and their weight of 3 g, the replacement blades for Landroid Worx knives produce a consistent and smooth cutting image (ULTRA sharp) The axle load is NOT affected by the slightly higher weight LONG LIFE OF USE: The blade set is made of stainless steel and has an additional coating of titanium carbide, which guarantees a long life expectancy. The supplied screws are also rust-proof and compatible with your Worx robot mower HIGH SAFETY: thanks to the use of high-quality materials, the blades of the robot mowerscannot break. Even if the blade encounters resistance (stones, etc.) - Important for the safety of the animal and the child WEATHER RESISTANT: thanks to their titanium coating, the blades of our robotic mowers are extremely weather resistant. So your robotic lawnmower can work for a long time and efficiently, even in bad weather - the ideal knife blades VERSATILE: Replacement blades are suitable for Worx, LandXcape, Zoef Robot and Einhell robotic lawn mowers, e.g.: WR130E, 141E, 142E, 143E, 153E, 155E