My last lawnmower was basically a glorifies whipper snipper and had a plastic ‘blade’. Having to worry about things like sharpening a blade is a new thing for me.

I don’t really want the lawnmower to go too fast, I generally keep the speed control closer to tortoise than hare, so red could have been a problem. The yellow is all underneath so is mostly invisible anyway & I’m pretty sure the red thing only works if you can see it.