This is the PJN Series 10x5 Electric Beechwood Propeller from Xoar Int.

FEATURES: Constructed of top-grade German beechwood
          Balanced during every stage of production
          Production process and measurement is certified to conform to aero
            sport equipment standard
          Processed from hub to tip minimize air resistance and balance air
            force
          Visually examined to ensure trailing edge symmetry

INCLUDES: Xoar International 10x5 Propeller

REQUIRES: Balancing before use, see COMMENTS

SPECS:    Diameter: 10"
          Pitch: 5"
          Hole Diameter: 0.25" (6.3mm)
          Weight: .52oz (15g)

COMMENTS: Final balance check is suggested before flight due to external
            factors such as temperature. Handling during transit may vary the
            balance of the propeller.

                                                                     GX 2/22/11