The power of this leash is in its ability to reduce the shock of a fall as it is strong enough to resist a minor fall but can break free in an avalanche. The stretching action of the leash minimizes the peak forces placed on the leash during a fall, allowing the attachment (fuse link) to have a lower breaking value. In turn, this allows the attachment to break in a situation that has a constant force, such as in an avalanche. The leashes should actually break away at a significantly lower force than your bindings' release point.