EVEREST shoulder rests are designed in the USA and manufactured with the finest material and workmanship. Everest shoulder rests were designed by a John's Hopkins' biomedical engineer to overcome the many shortcomings of existing traditional shoulder rests. Other manufacturers, such as KUN, Mach One, Viva la Musica, Bon Musica, and Wolf all have very good designs but many players still find them uncomfortable to use. EVEREST Violin and Viola Shoulder Rests are the only ergonomically designed and patented collapsible shoulder rests that provide the best comfort for violin and viola players of all levels. The Everest shoulder rest is a type of accessory for violin and viola players. It is designed to attach to the back of the instrument and provide support and comfort to the player's shoulder while playing. The Everest shoulder rest is adjustable to fit different shoulder shapes and sizes, and it is often made from materials that are comfortable against the skin. It helps to distribute the weight of the instrument more evenly across the shoulder, reducing strain and fatigue during long practice sessions or performances. Overall the Everest shoulder rest is a popular choice among violin and viola players looking for a comfortable and adjustable shoulder rest to improve their playing experience.