Kyusrd High Volume Emergency Whistle for Outdoor,No Hanging Rope

Lifes-saving Whistle High-volume Outdoor Emergency Survival Whistle No hanging rope
Describe:
Stainless Steel Material : Made of good stainless steel,solid and rustproof,not uncomplicated to damage for long-term use
Louds And Clear: Twofold-tube resonance soungs layout,strong soungs penetration,longer transmission distance outdoors
Usable Wet Or Dry: With waterproof and rust-proof technology,it can be blown normally when exposed to water,suitable for multi-environment use
Mini