Quantity:20 pcs safety survival whistles with lanyard in 2 colors, 10 pieces in each color. Quality whistles: this set of whistles is made of good quality plastic, very lightweight, sturdy and durable to use. Double tube design，each whistle can produce high and low frequency sounds. Conspicuous colors: these whistles are in 2 conspicuous colors, red and orange, very bright, can attract others' attention outside, help you to be found easily Special design: the survival whistles are designed with a clip and a nylon cord for securing on your belt or life jacket, its cord can be hanged around your wrist and neck. Easy to use: these whistles are easy to let out high-pitched sound which is can be heard from a long distance, can be applied in sailing, hiking, boating, kayaking,camping, hunting,emergency survival, rescue and so on.
