The choice of renowned guitarmakers for their finest instruments. Featuring lightweight, exotic snakewood knobs, which are ideal for a non-traditional, modern look.These sets have straight single-hole 1/4 -diameter brass string shafts for 3-left/3-right slotted pegheads. Screws included.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. Manufacturers such as C.F. Martin, Gibson, Collings, Santa Cruz, Huss & Dalton, Sams, and Bourgeois choose Waverlys for their finest instruments.Direct replacement design: No additional mounting holes to drill when replacing similar vintage machines on older Martin & Gibson guitars.More efficient operation & more precise tuning: 16:1 gear ratio. Patented worm tension bushing eliminates looseness.Long life with less wear: Stainless steel worm gears have twin bushings. String post gears are machined from bronze alloy; more durable than brass.Authentic knobs and string posts: Knobs are genuine snakewood. String posts are plated brass.Set of 6 tuners (3-left/3-right) for slotted peghead; mounting screws are included. The choice of renowned guitarmakers for their finest instruments Waverly tuners offer a modern, precise 16:1 gear ratio with vintage style Smoother, more efficient tuning Longer life with less wear Lifetime Guarantee Item model number 4098-G