Referee Whistle - PW3 the Perfect engraved Whistle

Referee Whistle | PW3 the Perfect engraved Whistle The PW3 Is The Highest Quality Engraved Referee Whistle On The Market, And Here Is Why! Engraved whistles are different from the non engraved whistles found at the big box stores. They are bigger in size and they are not plated. They are made of polished stainless steel. The bigger size presents a problem to engraved whistle manufacturers. They are setup to mechanically insert a small cork ball inside the whistle after the whistle is soldered together. The small cork ball doesn't work, because it takes all of your breath to barely blow the whistle. Larger whistles require a larger cork ball.  They can't mechanically install the larger cork ball. And they can't put a larger cork ball in the whistle before soldering, because of the heat. So they install a white ball made of stone before soldering, which is not bothered by the heat.  The problem is the white stone ball is too heavy to blow. We order our engraved whistles without any ball