Magnificent biggery whistle

This is a nice little whistle that can create a high frequency pitch to grab someones attention. It is made of a hollowed cylinder with one end cut at a 45 degree angle. it has a angled square inside to close off the mouth piece which creates the pitch. This whistle can be used in a variety of ways. It can be used as a dog whistle, to get someones attention, to make music, a refs whistle, or a tuning instrument.