Package contains: 10x cushion protector for clarinet Clarinet thumb rest cushion size: 17 x 15 x 10mm / 0.66 x 0.6 x 0.4in(L x W x H). It is easy to use and carry. The clarinet thumb cushion can relieve sore thumbs and provide extra thumb rest, protecting your instrument and hands, alleviating the fatigue of long practice sessions. Clarinet thumb rest will help to maintain the correct finger position, suits for most clarinets. Perfect gift for professional and beginner.