Helps load magazines quickly, without wear and tear on your fingers and thumb, so you can spend more time shooting and less time reloading. Easy-to-use, just slide over the magazine until it grabs the follower side button, then push down with your thumb to compress the spring and begin inserting rounds until full. Durable, one-piece molded polymer is solvent-resistant. Easily stores in your pocket, range bag, or on a key chain.