The choice of renowned guitarmakers for their finest instruments. Lightweight, exotic snakewood is ideal for a non-traditional, modern look. Waverly tuners feature old style tapered 1/4"-diameter string posts and the press-fit brass hex bushings fit 11/32"-diameter pegholes. With Waverly tuners, your guitar plays in tune and stays in tune. Waverly's patented design combines stainless steel with bronze to create smooth, non-slip tuning. The perfect replacement tuners for valued instruments, Waverly machines are handmade to fit precisely without drilling on older Martin and Gibson guitars. Direct replacement design: No additional mounting holes to drill when replacing similar vintage machines on older Martin and Gibson guitars. More efficient operation and more precise tuning: 16:1 gear ratio. Patented worm tension bushing eliminates looseness. Longer life with less wear: Waverly's stainless steel worm gear and machined bronze alloy string post gear are more durable than the brass gears used in other tuners. Authentic knobs and string posts: Knobs are genuine snakewood. Old style tapered string posts are nickel or gold-plated brass. Set of 6 (3-left/3-right): mounting screws (12) and bushings (6) included.