Flashing Whistle: 1. Material: Plastic, battery operated and included. 2. Led light: red, bule. 3. Size: 22mm(W)*50mm(L). Flashing Whistle: Flashing whistle with Led color: Red, blue, green, white; When you press the button to turn it will be flashing, place the whistle holder in the mouth, blow it and flash, press the button again to turn off.1. Material: Plastic, battery operated.2. Size: 22mm( ...