Thank you for viewing! This is a protective cover to be used on 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 on both violins (4/4) and violas if they are Guarneri or Kauffman type. (Currently not compatible with Fresh type or other shaped chin rests) Length: Approximately 20cm Width at the widest point: Approximately 12cm Pocket opening: Approximately 10cm, depth approximately 4.5cm Made with three layers of fluffy double gauze. No batting. The pocket is made of high-quality, domestically produced black plain broadcloth (100% cotton). Images 7 and 8 are the instruction manual. (A sample was used for the photos.) The instruction manual will be included. Please hand wash gently when dirty. Ironing is possible except for the rubber parts. Delivery will be via Rakuraku Mercari Bin or Yu-Yu Mercari Bin. (Anonymous delivery) ⚠️ As a stringed instrument player, I make these carefully with dedication and care, but as they are handmade, please refrain from purchasing if you are overly concerned about details. Thank you for your consideration!