propeller guard feature:

1. separate the propeller from the outside to avoid accidental scratches on people or objects by the propeller,
2. at the same time, avoid foreign objects hitting the propeller to improve flight safety,
3. lightweight and compact, easy to carry and store.

note:
1.does not include drons,
2.transition: 1cm=10mm=0.39inch,
3.please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering,
4.due to the difference between different monitors, the picture may not reflect the actual color of the item,please make sure you do not mind before ordering, thank you!