The Whistle Shield was developed to fortify existing whistles from emitting particles up and into the air.
TWS maintains the whistles sound/function and is easily cleaned and attached.
Once a whistle has been Shielded, all of the emissions are directed straight down and away from the eyes, nose and mouth of any close player, coach, fan or fellow referee.

Please See below for the best way to attach to your lanyard.
Remove the lanyard ring from your whistle then attach it to the outside of your Shield.

DOES NOT FIT A FOX40 FINGER STYLE WHISTLE