WOVTE Whistle Buckle, 1.8 x 0.75 Inch Whistle Buckles with Flint Fire Starter and Striker for Paracord Bracelet Fluorescent Green Pack of 10 Very Loud whistle buckle to alert others you need help Flint on one side with REMOVABLE striker/scraper on the other No one plans to get lost. These survival tools are on your wrist all the time Used for making paracord bracelets, dog collars, lanyards. and other survival gear that you can carry every day so you have it when you need it Size:62mm*32mm*11mm; Webbing Size:3/4"(19mm)