Whistle Buckle, Wish Dayz 1/2" Whistle Buckles w/Flint Fire Starter & Striker for Paracord Bracelet Emergency life-saving equipment. Whistle Buckle for Paracord Bracelet. Scraper can be used as knife. Liquid Filled Compass for Accurate Readings Set of 10 Pieces.1/2"whistle Buckles w/ Flint Fire Starter & Striker for Paracord Bracelet