Fox 40 Classic Official Referee Whistle with Finger Grip<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Full size original "classic" Sonic whistle with finger grip</li><li>No moving parts to freeze， jam or deteriorate</li><li>115 Decibels of high pitch shrill rises above ambient noise-can be heard up to a mile away</li><li>100% constructed of high-impact ABS plastic-So they're 100% impervious to moisture</li><li>First Choice of; NFL， NCAA， NBA， CFL FIBA and FIFA</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41pbLnDrh4L.jpg" noproxy>