3pcs 304 Stainless Steel Coach Whistle Referee Teacher Sport Emergency Trainer Whistle(Silver)

1. Made of high-density stainless steel, anti-corrosion and anti-rust, durable
2. No burrs and not easy to deform, safe entrance
3. Due to the frequent whistle blowing in various competitions, a reinforced stainless steel sheet is used at the whistle to ensure the stability of the whistle, which is more durable and chewy
4. With a key ring, it can be buckled on the key or on the lanyard, which is easy to carry and not easy to lose
5. The core of the whistle is made of wood core, which is strong and wear-resistant. It is a common equipment for outdoor sports and wild survival
6. Material: 304 stainless steel
7. Net weight: 10.33g/pc
8. Size: 47.1 x 17.9mm