It seems kind of funny talking about something as mundane as a plastic buckle, but this buckle has a pretty neat feature. On one side there is a mouthpiece that makes it a pretty loud whistle. This is a potentially life saving device; imagine being lost, stuck in a vehicle over an enbankment, stuck in a building, etc. Start blowing on that whistle, and someone is bound to hear it.
Please watch and comment (thumbs up if you like it), it could save your life:
The buckle tested may be found here on our store: http://www.paracordstore.com/Side-Release-Whistle-Buckle_p_55.html