Manufacturer Description

    This is the APC 9x4.5MR Multi Rotor Pusher Propeller.
**Not for use with gasoline engines.**

FEATURES:
Specifically designed for multi-rotor applications
Designed for electric powered aircraft with rear facing motors that
    "push" the airplane forward
Bridges the gap between Thin Electric and Slow Flyer props
Lighter that the APC Thin Electrics with a higher RPM capability than
    the Slow Flyers
Lightwight molded nylon construction, gray in color

INCLUDES:
APC 9x4.5MR Multi Rotor Pusher Propeller

SPECS:
Length: 9"
Pitch: 4.5"
Maximum RPM: 105,000/prop diameter (inches)

BOX DIMENSIONS: 2.25" W. X .38" H. X 9.00" L.
BOX WEIGHT: .04 LBS.