These are the HQ version of the 40mm 3-blade prop with a 1mm shaft size.
Propeller Diameter : 40mm
Pitch : 1
Blades : 3
Material :Poly Carbonate
Weight : 0.37g
Hub Diameter :5mm
Hub Thickness : 5mm
Shaft : 1mm
Includes
2 x CW HQ Micro Whoop Prop 40MMX3 Grey
2 x CCW HQ Micro Whoop Prop 40MMX3 Grey