If you need a protective ring. Please click the image below

Feature:

1. Made of high-quality materials, durable;
2. Small size, low noise, provide strong pulling force for UAV;
3. The blades can be quickly installed and removed.

Description:

Material: PC
Applicable models: for Air 2/Air 2S
Color: Red, black
Net weight: 28.1g (2 pairs), 48g (4 pairs)
Product size: 8.8*2.2cm

packing list:
2pcs Propeller (pair) or 4pcs Propeller (pair)

Note:

1.Does not include Drone,
2.Transition: 1cm=10mm=0.39inch,