The main part of the shoulder rest is made of comfortable rubber, untop of that the aluminum plating wich makes it possible for the player to shape the rest to their own shape and allowing them to play with their own ergonomics. Delivered with this rest are two plastic spacing tubes wich allow the arms to be stable when put into the highest position. Features: - Curved shape - Adjustable in height on both sides from 0.5cm to 8cm - Adjustable to any angle - Adjustable to any width - Flexible backplate for custom ergonomics