Fox 40 Classic Finger Grip Whistle Collections The Insta-Fit technology used by

The Insta-Fit technology used by Shock Doctor allows special ortho-channels to fit around brace brackets and adapt to changes in tooth position as braces are adjusted

Innovative aspect ratio for accelerated push across the crease

Made with bold graphics

The tailbone area of the girdles feature a dual density foam for additional protection against all impacts

low-volume design can help improve the fit and feel of tight-fitting footwear

Fox 40 Classic Finger Grip Whistle Collections The Insta-Fit technology used byThe 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