Wide compatibility: you can use the replacement blades from your robot lawn mower with your Husqvarna automatic lawn mower without any hesitation. Smooth cutting edge: Thanks to the thickness of 0.75 mm, our robot lawn mower blades guarantee a smooth cutting edge. HIGH-QUALITY MATERIAL: Made of high quality 420J2 stainless steel with titanium coating. Excellent corrosion resistance, acid and alkali resistance and wear resistance. Easy to replace: The blade is double-sided and the screws are easy to install and remove. The lawn stays clean, green and healthy. EASY TO STORE: Replacement blades come in a convenient, resealable box. At the same time, they can be placed correctly to avoid injury.