KNVB Referees FOX40 Whistle Set Classic Black White

This is the KNVB Referees Flute Set FOX40 Classic. Due to the elasticity of the wristband, it is very comfortable to wear. At the end of this wristband there is a metal ring to which a whistle can be attached. The wristband is adjustable so that it always stays firmly around the wrist. The patented ABS referee whistle produces a very high sound by means of 2 special air ducts. A cork is no longer used in the whistle, which can stick in wet weather. The unique design ensures better whistle quality in all weather conditions. A must for every referee!