This is one R/C Airplane 16x6 APC Sport Composite Propeller
by Landing Products.

FEATURES
APC props are manufactured using a pultrusion process. This method
causes the fiberglass "fibers" to be oriented axially in 1/2" long
pellets, allowing for a higher fiber (60%) to resin (nylon binder)
density. Providing substantially higher strength and stiffness than
glass filled nylon.
The additional stiffness is beneficial to control of vibration
resonance response.
The higher strength allows the use of thinner cross-sections,
beneficial to weight and aerodynamic efficiency.
Competition proven.
Dark gray composite material.

INCLUDES
One APC Sport Propeller

REQUIREMENTS
9/32" + 5/16" Tubing for Bushing
ALL props require balancing (use TOPQ5700).
May need prop reamer, use GPMQ5005 (SAE) or (Metric).

SPECIFICATIONS
Prop Diameter: 16"
Prop Pitch: 6
Hub Thickness: 0.60"
Hub Diameter: 0.9"
Weight: 0.0708lbs
Engine Shaft Diameter: 1/4"