Mach One Maple Violin Shoulder Rest This may be the best shoulder rest design ever! Ergonomically designed to be one of the most comfortable rests on the market today, the Mach One is completely hand carved The feet are molded out of 100% nylon so there is no risk of scratching your instrument Try one today, you will be amazed at the difference Ergonomically 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