ITEM NAME:Black Plastic Pealess Finger Grip Sports Skate/Football Referee Mouth Whistle FT Features: 1. Cushioned Mouth Grip, Finger Grip 2. No moving parts to freeze, jam or deteriorate 3. Easy to blow and cannot be overblown 4. Finger grip model has adjustable finger grip that fits securely and comfortably over group of finger Specification:.Cushioned Mouth Grip, Finger Grip. Finger grip model has adjustable finger grip that fits securely and comfortably over group of finger. Easy to blow and cannot be overblown. Material: Plastic. Color: Black.