HQProp's 5.1x4.1x3 propeller features POPO compatibility. This doesn't mean you can't use this prop with normal motors, they still work perfectly with normal motors and prop nuts.
Specifications
- Size: 5.1"
- Pitch: 4.1"
- Material: PC
- Blades: 3
- Weight: 4.5g
- Mounting hole: 5mm
- Center Hub Thickness: 7mm
- POPO Compatible: Yes
Includes
- 2x CW 5.1x4.1x3 Propellers
- 2x CCW 5.1x4.1x3 Propellers