SAM XT’s TRUFORCE™ Buckle technology auto-locks at a predetermined amount of circumferential force, eliminating nearly all tourniquet slack. This is achieved with an innovative baseline force control that activates locking prongs into the tourniquet strap. Simply click, twist, and secure for a life-preserving tourniquet application. This groundbreaking design, quality craftsmanship, and attention to detail make SAM XT an essential part of any first responder, military, medic, or disaster mitigation kit.