Gemfan 40mm 1610 Durable 2 Blade 1mm 

This 40mm dual blade is an excellent propeller choice for your 75mm whoop or nano for some additional flight efficiency.

Specifications

Weight:0.241g

Material:PC

Pitch:1 inch

Props Dia:40mm

Center Thickness:5mm

Center Hole Dia:1.0mm

Adaptive Motor:1102

Colors:Clear Blue,Clear Gray