West Coast Paracord's side release whistle buckles are an excellent addition to any survival project and more. Make an emergency kit or survival bracelet, lanyards, use on bag straps, dog collars, belts, harnesses and more. These are perfect for camping, hunting, scouts, hiking, or any other outdoor activity. Pair our buckles with paracord, rope, webbing, ribbon, or straps with the 3/4 inch slot. Gain easy access to the whistle in case of an emergency with the sleek side release design that is so user friendly. These are durable and versatile whistle buckles that have a length of 2.25”, a width of 1.375”, and a height of 0.375”. Be prepared in any situation with this awesome tool.