Technology advances abound in this Collapsible Violin Shoulder Rest from Everest. Designed for ultimate ergonomic comfort, the rest is collapsible, adjustable, and an all-in-one solution for broken brackets and lost knobs. Engineered to exacting standards, the Collapsible model is praised by students, teachers and professionals for its comfort, durability and style. This robust accessory is designed to fit 4/4, 3/4 and most 1/2 Violins.