WSYUB 48Pcs Plastic Whistles, Sports Whistle Bulk with Lanyard, Super Loud
Loud crisp sound whistle: Bright color plastic whistle with the "rattle" ball inside. Wide mouth of whistle will provide enough air. When you blow it, it vibrates at a higher frequency, causing the whistle to emit a louder sound.
48Pcs Plastic Whistles, Sports Whistle Bulk with Lanyard, Super Loud Training Sp
48Pcs Plastic Whistles, Sports Whistle Bulk with Lanyard, Super Loud Training Sports Whistle for Coaches Referees, Colorful Whistles for Toy Soccer Giveaways Party. 48Pcs plastic whistle. Loud crisp sound whistle: Bright color plastic whistle with the "rattle" ball inside.