Ergonomic design for efficient and quick loading of your .22 caliber pistol magazine * High quality CNC Machined DuPont Delrin with a 100% Lifetime Warranty * Saves your thumbs while easily loading your .22 caliber magazine * Includes a detachable lanyard, while connected makes your magazine loader easy to locate * Fits Ruger Mark I/II, 2245 as well as Browning Buckmark 22, Browning Challenger II, Smith & Wesson 22A/22S, Colt Huntsman/Woodsman, and High Standard 22