Star Wars - Vice-Admiral or rear admiral rank insignia emblem
It measure from 13cm( 5 1/4") x 7cm(2 3/4").
As shown in the picture it is in 3-D where the red and blue tab are protruded up.
It is made of soft plastic and can be attach to the uniform by double side tape adhesive or stitching Star
DOCTOR WHO CARES 2