Can not locate thes at DJI
Banned?
Dysfunctional?
Illegal metallurgical properties?

Hello and good day cutis. Thank you for reaching out and for the inquiry. I am sorry to say that the Low-Noise Quick Release Propellers are not available for the DJI Mavic Air. DJI has not yet produced an official Low-Noise Quick Release Propellers for the DJI Mavic Air. For the latest news and updates in the said drone and it's accessories. Kindly please visit our official website at www.dji.com for more updated details. Thank you for your valued support.

DJI Stephen Posted at 3-19 08:56
Hello and good day cutis. Thank you for reaching out and for the inquiry. I am sorry to say that the Low-Noise Quick Release Propellers are not available for the DJI Mavic Air. DJI has not yet produced an official Low-Noise Quick Release Propellers for the DJI Mavic Air. For the latest news and updates in the said drone and it's accessories. Kindly please visit our official website at www.dji.com for more updated details. Thank you for your valued support.

Verygood, standingby for silent propellers mavic air @ website announcement

cutis Posted at 3-19 11:21
Verygood, standingby for silent propellers mavic air @ website announcement

It is always my pleasure to help you cutis. Have a safe and happy flying always.