Excellent Sports Teacher Whistle Eco Wide App Mini Soccer Soccer Referee WhistleSpecifications:The referee whistle is small and lightweight, so you can carry it with you easily and conveniently. The referee's whistle features a unique double cavity that has high frequencies and a loud sound. Made of ABS, the referee whistle is eco-friendly, wear-resistant and durable to use. The length of the referee's whistle is 6 cm and the width is 2 cm. The referee's whistle is suitable for personal or professional use. Item Name: Referee WhistleMaterial: ABS Features: Professional, Loud Sound, Mini Size Details:6cm x 2cm/2.36" x 0.79" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to manual measurement. Package Included:1 x Referee Whistle1 x Lanyard1 x Finger Clip1 x Mouth Guard1 x Storage Box