SPECS + Precision fit for Smith and Wesson K/L-Frame Revolvers (Square Butt): Models 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 45, 48, 53, 56, 64, 65, 66, 67, 68, 547, 581, 586, 617, 648, 681, 686 + Material: OverMolded® rubber with finger grooves and wood big butt + Texture: Cobblestone™ + Color: Black FEATURES + 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 that ages gracefully for years of service + Designed for a tight and secure fit engaging with the texture and contours of the firearm's frame