Model Number MOH Made in Canada. Shoulder rest designed and manufactured by Peter Mach, a violin maker. Features a clear tone and powerful volume. This is a very lightweight type. Although the material is the same as the Mach One Maple, the curve of the part that touches the shoulder on this Comfort model is sharper, allowing it to grip the shoulder more securely. Please understand that this is a used item. There are no problems with its use.