Shanbye Whistle, Hand Squeeze, Loud Crisp Sound, PVC & Stainless Steel, Clear, Sports, Referees, Coaches, Teachers

Material:Made of high-quality PVC material, the Hand Squeeze Whistle is easy to clean and durable enough, so you can use it with confidence. Size:6cm * 12 cm. Hand whistles for trainers, referees, paddlers and officials, as well as lifeguards, animal trainers and traffic police. Easy to use:Just need simply press hand whistles to get a loud sound ,the more stronger press the more louder sound. stainless steel sports whistles are ordinary whistle. Safe and Hygienic: our hand whistle does not need to be blown into the mouth. Therefore, the hand whistle is very hygienic and can be used by many people without spreading bacteria. Wide Application:Hand Whistle for Teacher can be used by coaches, referees, or others in need. It is suitable for various sports training and matches, such as basketball, football, baseball, volleyball, ping-pong ball, etc.