The Wilderness Stretchable Ammo Thing, .22 WMR holds either 6x or 12x rounds of .22WMR (Winchester Magnum Rimfire) ammunition in a carrier made from our rugged XHD elastic with a clever criss-cross sewn pattern. Secure, yet easy to use, it is extremely flat and low-profile. It makes a perfect, pocketable reload for .22WMR revolvers. Can also hold .17 HMR cartridges.