These are the 7x4F Folding Propeller Blades from
Advanced Precision Composites.
For use on Electric powered aircraft only (not for glow engines).

FEATURES: Gray composite propeller blades that assemble onto a propeller hub
(hub not included, see REQUIRES).
Comes in a bag attached to a header card

INCLUDES: Two composite propeller blades
One instruction sheet

REQUIRES: 45mm prop hub and hardware for assembly, use APCQ4390.
Hand and eye protection when operating propeller.
ALL props require balancing (use TOPQ5700)

SPECS: Diameter: 7"
Pitch: 4"