Finger grooves naturally position fingers for optimal grip. Textured with Hogue's famous Cobblestone pattern for increased comfort and grip. Made from long lasting durable thermoplastic elastomer. Designed for a tight and secure fit engaging with the texture and contours of the firearm's frame. Precision fit for Smith and Wesson K/L-Frame Revolvers (Round Butt): Models 10, 12, 13, 14, 15, 17, 19, 64, 65, 66, 67, 69, 242, 296, 386, 396, 460, 500, 520, 547, 586, 617, 619, 620, 646, 647, 681, 686, 696, 986, Governor / N-Frame Revolvers (Round Butt): Models 21, 24, 25, 29, 325, 327, 329, 357, 610, 624, 625, 627, 629, 657, 929 / X/Z-Frame Revolvers (Round Butt): Models 460, 500 Governor