Mach One Maple Violin Shoulder Rest 3/4-4/4Ergonomically designed to be one of the most comfortable rests on the market today, the Mach One Shoulder Rest is hand carved from curly maple, which beautifully matches the back of the instrument. Every maple Mach One rest is unique, elegant, slim and light. The feet are molded out of 100% nylon so there is no risk of scratching your instrument. The Mach One features a simple but fully adjustable design (width and height), whose graceful curves