Hogue 19200 Wood Grip Goncalo Alves, S&W K/L Frame Round Butt Fits: models 10, 12, 13, 19, 64, 65, 66, 547, 581, 586, 681, and 686 Carnauba wax which will not crack and peel like cheap, sprayed-on finishes Hogue wood grips are made from Goncalo alves wood, among the hardest and most durable Woods in the world