KUN is the standard manufacturer when it comes to violin shoulder rests. Among the many series, the "Super," whose width can be easily adjusted using a slide, is now on sale at a special price in limited numbers. The size is 4/4, and the color is black. You can adjust the leg even more finely than the screw type, so you can make the adjustment that suits you best!
KUN / "Super" black 4/4 size shoulder rest for violin