Specification:
Blades: 4
Material: PC
Pitch: 2 inch
Center Thickness: 5mm
Prop Disk Diameter: 31mm
Center Hole Inner diameter: 1.0mm
Max Prop Width: 5.71mm
Weight: 0.31g
Adaptive Motor: 0703-1103
Recommended Motor:Coreless Motor/0703
Colors: Clear Red,  Clear Purple

Package Includes:
4 x 31MM 1220-4(1.0mm hole) CW
4 x 31MM 1220-4(1.0mm hole) CCW