• The Fox 40 Classic Fingergrip is for referees and coaches at all levels who want every call to be heard
• Fingergrip model has adjustable fingergrip that fits securely and comfortably over group of fingers
• No moving parts to freeze, jam or deteriorate
• Flawless, consistent and reliable
• The harder you blow, the louder the sound
• Easy to blow and cannot be overblown
• Chambers are designed to self-clear when submerged in water
• Will be heard above ambient noise, loud crowds, the roar of engines, breaking waves and thundering gale-force winds
• Sound will be heard up to a mile away