Many claim improvement in the tone and response of their instrument using the Mach One Plastic M07 Violin Shoulder Rest.

Available in multiple sizes

The Mach One Maple Hook Violin Shoulder Rest is even more ergonomic than the famous original Mach One, the new "Hook" model rises to new levels of comfort for the busy player. Fits 3/4 and 4/4 violins. 

The new Mach One Maple Hook Viola Shoulder Rest  is even more ergonomic than the famous original Mach One. The new “Hook modell rises to new levels of comfort for the busy player.