KUN Collapsible Violin Shoulder Rest 4/4The Kun Collapsible fits 4 4 violins and, when adjusted to its smallest size, will also accommodate a 3 4 size instrument. Feet collapse for easy storage. This design is nearly identical to the Kun Original except for the underside material being brown in color instead of black. Very handy for those with shaped cases or those with insufficient space to store the standard Kun shoulder rests. Features: Foam and sponge covered contoured bar Rubber feet