This product is a large aluminum whistle, length 62.5mm, diameter : 11.7mm sound post light, single weight 10 grams price is very affordable, factory direct prices.
( Name ) self-defense supplies first aid supplies loud whistle whistle whistle aluminum rescue whistle training whistle
( Material ) aluminum (with or without chain rings to prevail in kind )
( Specifications) Length : 62.5mm diameter : 11.7mm
Weight : 10 g / month
(Color ) blue, silver and red tricolor, random delivery
( Features )
It can be hung on a backpack, or hang on a key ring, fashionable and practical!
Peer contact with each other in the wild, danger, accident needs help with the, a little whistle to help on a lot of help .
It can be used as outdoor survival training purposes.