This is a Blue 2¾" Snap-On Spinner from Carl Goldberg Models.

FEATURES: Blue nylon construction.
          4-pin spinner takes larger props, shafts and hubs without sacrificing
            performance or convenience.
          With 5 prop shaft adapters (included), the improved 4-pin design
            fits most props, eliminating reaming the back plate or trimming the
            spinner.
          Pre-balanced, lighter than aluminum and free of unsightly surface
            screw holes.
          Perfect shape and polished finish.
          Carded packaging.

INCLUDES: One Blue 2¾" Spinner

SPECS:    Diameter (at base): 2.75" (70mm)
          Length: 2-7/8" (73mm)
                                                                   sdw 12/18/02
                                                                         ir/jxs