Fox 40 Caul Flexible Fingergrip Whistle O7 Ideal for running

Ideal for running

and are naturally moisture-wicking

When you sweat

Start with FlexFuel today and give your game the foundation it deserves

Fox 40 Caul Flexible Fingergrip Whistle O7 Ideal for runningThe Fox 40 Caul has a traditional harmonized trill tone and clearloud sound The Cushioned Mouth Grip (CMG) provides soft contact area and reduces impact on teeth Compact pealess design for flawless performance Flexible fingergrip fits various handsizes and reduces transfer of impact energy to the hand 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