Party On Happy Birthday Light Up Tiara , Multi , 2 1/2" x 5" Plastic Features a bright red, marabou trim, teal flowers encrusted with faux jewels, and a black, heart shaped medallion with an "IT'S MY B-DAY" headline. The heart shaped medallion lights up to emphasize who is the true princess of the party. Measures 2 1/2" x 5" Package includes 1 tiara