Giftwrap offers the metal referee wistle made out of brass. A brass whistle that comes with a lanyard and blister pack, this wistle is ideal for every day use. Moreover, what adds to the impact of this wistle is that it is very affordable. Moreover, Giftwrap offers users the choice of customizing the wistle as they want by getting laser engraving on it. Get your wistle and customize it by Giftwrap’s incredible choices.