Thank you for viewing! This is a protective cover to be used over the chin rest of a violin or viola. It protects your precious instrument from dirt and sweat, and is made at the request of those with allergies to metal or varnish, or those with sensitive skin. This cover can be used for both violins (4/4) and violas if they have a Guarneri or Kaufman type chin rest. (Currently not compatible with Fresh type or other shaped chin rests) Outer dimensions are approximately 20cm x 12cm, with a pocket opening of about 10cm and a depth of about 4cm. The outer side is a light blue-gray color with a navy blue Nordic floral pattern (cotton linen), and the inner side is navy blue plain sheeting fabric (100% cotton). There is no batting inside, so it is thin and stress-free to wear. ⚠️ The colors could not be captured accurately due to smartphone photography. Please note that the color of the actual product may differ slightly from the photos. Cover the chin rest with the pocket part and secure it with the rubber band on the back. We use very soft mask elastic so it won't scratch your precious instrument. It shouldn't affect the sound, but if you are concerned, you can put it over the shoulder rest or wrap it around the shoulder rest. You can also put it through the shoulder rest to save the trouble of attaching and detaching it every time. The length of the elastic can be finely adjusted with the stopper. This stopper is also made of silicone, so it will not affect the instrument or the sound. The buttons are made of acrylic, but the back buttons that touch the instrument are made of soft felt fabric. Please wash gently by hand when dirty. Ironing is possible except for the elastic and buttons. Images 9 and 10 are the instructions. (A sample was used for the photos) ⚠️ These will not be included, so please save them by screenshotting, etc., if necessary. As a stringed instrument player, I make each one carefully with dedication and care, but since they are handmade, please refrain from purchasing if you are sensitive to details. Thank you very much! ♪