I used this for about a year. 【Viola Shoulder Rest】 This viola support is designed to improve comfort during performance. The adjustable clinching mechanism allows you to secure it in the optimal position to suit the player's body type and preferences. 【Material and Design】 The sturdy construction using metal and fabric ensures durability for long-term use. The simple black design complements any instrument. 【How to Use】 Easy to attach, it's an essential item for making viola playing more comfortable. Especially recommended for those who perform for long periods. - Color: Black - Material: Metal - Features: Adjustable clinching mechanism Thank you for viewing.