This is the 11x4.5 MR Multi-Rotor Propeller from APC.
**Not for use with gasoline engines.**
FEATURES:
Composite nylon construction, gray in color
Specifically designed for multi-rotor applications
Bridges the gap between APC's Thin Electric and Slow Flyer props
MR series is lighter than the Thin Electrics, with a higher RPM
capability than Slow Flyers
INCLUDES:
11x4.5 MR Multi-Rotor Propeller from APC
SPECS:
Hub Diameter: 0.65" (16.51mm)
Hub Thickness: 0.35" (8.89mm)
Shaft Diameter: 1/4" (6.35mm)
Weight: 0.60oz (17g)