Blue Sports Electronic Whistle Training aid The lightweight design helps with

The lightweight design helps with mobility

It's backed with 100% biodegradable

The narrow/shallow fit design with pronounced heel shape ensures a precise

its height has been raised to create a better attack angle and extends the lifespan of the runner itself

Blue Sports Electronic Whistle Training aid The lightweight design helps withThe Blue Sport Electronic Whistle is a hand operated whistle with a wrist strap attachment powered by batteries. This sanitary solution for any user provides a clear and strong sound that reaches all corners of the arena. This whistle works in all temperature and weather environments. With 3 different tones to choose from, this whistle will work for most sports and activities. Easy to operate 9 volt battery included 3 different whistle tones 125 db