Just got these brake pads for my Ninebot F30 and wanted to share my experience.

The good: They actually work pretty well! Stopping power is decent and they were easy to install. Noticeably better than my worn-out original pads.

The bad: Saw some reviews saying they don't fit F40 models, which seems true. Mine fit the F30 perfectly though. Maybe double check your model before buying?

Weird thing: The packaging says 'All-Metal' but description mentions 'Resin Semi-Metal'. Not sure what's up with that, but performance is fine regardless.

Final verdict: If you have F20/F25/F30, these are a solid budget option. For F40 owners... maybe look elsewhere unless you enjoy throwing money in the trash (literally).