This is Du-Bro's 6mm x 1 Aluminum Spinner Prop Nut.

FEATURES: Plain silver aluminum spinner.
          Meets AMA safety specs.
          CNC machined from 6061 T6 aluminum.
          Works with standard electric starting cones.
          This will fit the following engine models:
            Enya- .15, SS.15, .19, .19X, .21CX, .25X
            HP- VT.21 4S, VT.49 4S, .40FRT Gold Cup 2C, .61 FRT Gold Cup 2C
            Moki- .51 RC
            MVVS- .15-.61
            Rossi- .21
            YS- .53

INCLUDES: (1) Aluminum Prop Nut

SPECS:    Approx. Weight: 1oz
          Shaft Size:     6mm x 1

COMMENTS: Tighten nut with a screwdriver, ball driver or steel rod.
                                                                    06-09-98kzh
                                                                          ir/jl
                                                                      kr3/17/03