These HQProp Micro Whoop Propellers have a shaft hole of 1/1.5mm and are a great choice for brushless whoops! 40mm of length means they fit a variety of power whoop style drones that use brushless 110x motors. More specifically, the Beta75X drone from BetaFPV.

Now available in a variety of colors.
These do NOT fit brushed motors.

Specifications:
Length: 40mm
Product Material: ABS
Color: Black, Orange, Purple, Green (Optional)
Inner Diameter: 1/1.5mm Shaft (Optional)
Weight: 0.3g

Package Included:
2x HQProp 1.6x1.6x4 Whoop Props (1/1.5mm Shaft Hole)
2x HQProp 1.6x1.6x4 Whoop Props (1/1.5mm Shaft Hole)