Whoop props from HQProp are here!
HQProp Micro Whoop Prop
Spec: 31mm 1.2X1.2X4 0.8mm Shaft
Includes a set of 2 CW & 2 CCW in your color of choice.
these props really do reduce jello at a cost, punch speed and they fit so tight I had to use a super small drill bit and by hand make the hole a fraction larger.