1、Designed perfectly according to the shapes of people s shoulder. 2、Easy and convenient to assemble and disassemble. 3、Made of good rubber and foam material solid durable and soft even can protect your violin from any damage. 4、Fully adjustable for both height and angle which makes you to keep best condition and enable you to grip the side of violin for perfect hold and position. 5、Indispensable accessory for violin 3/4 4/4 players.