This holster is a mold your own holster. You simply cover your gun in gun oil, put the holster in a bucket of water until the bubbles stop coming up. Then, you will put your gun in the wet holster. Next, rub your fingers around the gun to form the holster to shape and let dry. You can also decrease the mold time by having someone blow dry it while you are shaping the holster. This holster will fit anything from a Ruger LCP to a full sized 1911.