Set 1/2/5/10 còi sinh tồn bằng nhôm cỡ nhỏ 7 màu tiện dụng

Material: Aluminum alloy.
Quantity:1/2/5/10pcs
Size: About 45 x 8 mm / 17.71 x 3.15inch.
Brand new with high quality
Keyring Diameter:24 mm / 9.45inch
Color: Red/Blue/Green/Yellow/Silver/Purple/Black
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 Aluminum Whistles Emergency Survival Whistles with Key Ring
Notice:
1.Transition: 1cm=10mm=0.39inch.
2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering.
3.Please understand that colors may exist chromatic aberration as the different placement of pictures.