OKKFINE 1/2/5/10pcs 7 Colors with Keyring Outdoor Survival Whistle Emergency Whistles EDC Tools Training Accessories

Keyring Diameter: 24 mm 9.45inch. Material: Aluminum alloy. Color: Red/Blue/Green/Yellow/Silver/Purple/Black. Size: About 45 x 8 mm 17.71 x 3.15inch. Quantity: 1/2/5/10pcs. Size: About 45 x 8 mm 17.71 x 3.15inch. Keyring Diameter: 24 mm 9.45inch. Quantity: 1/2/5/10pcs. Material: Aluminum alloy. Color: Red/Blue/Green/Yellow/Silver/Purple/Black. Brand new with high quality. Features: 1. Made of premium aluminum alloy with anti-oxidation surface, the whistle is solid and durable. 2. Emergency survival. Suitable for outdoor sports, like hiking, camping, climbing, etc. It can be used to call for help if there is an accident. 3. Daily exercise. Suitable for pet training, football, basketball, soccer, hockey or any other exercises. 4. With mini and portable size, it is easy and convenient to take it anywhere you want. The key ring can be attached to a lanyard or a key. 5. Lightweight but loud enough. The sound can be heard from far distance. Package Include: 1pc or 2pcs or 5pcs or 10pcs Alumi