The robotic lawnmower is thin and light, therefore the cutting effect of the robotic lawnmower is very good. So you can easily mow your lawn. The blade change is very convenient. Simply unscrew the old robotic lawnmower and install the new robotic blades with the supplied screws. Lawn mowing is a long-term problem and it is best to always have a set of this robotic lawnmower, so that you can put it down immediately if needed without delaying the lawnmowing. Our recommendation is not only to replace a single robotic lawnmower, but to replace the entire robotic lawnmower and the screws included in the delivery to achieve a smoother cutting effect, clean and precise grass cutting, high cutting efficiency, our robotic lawn mower lawn mower will be long-lasting performance. The dust lawn mower replacement blade has a special surface treatment, the robotic lawn mower does not rust easily and is weather resistant and can easily clean itself thanks to its own rotation. the robotic lawnmower has two sharp sides, giving you more efficient cutting performance. Lawn can be cut quickly, which reduces the frequency of changing car blades and increases the efficiency of the machine. The robotic lawnmower has higher hardness, smoother surface, better foaming and better insulation, which allows you to mow efficiently for a long time and have a better experience even in bad weather. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin