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 is specifically designed for the Guarneri-type chin rest. It can be used for both 4/4 violins and violas. It's difficult to give the overall size, but the outer dimensions are approximately 18cm x 13cm. The pocket opening is about 10cm and the depth is about 6cm. Made with two layers of fluffy double gauze. No batting. The pocket is made of high-quality, domestically produced black plain broadcloth (100% cotton). Please hand wash gently when dirty. Ironable except for the rubber parts. Images 7 and 8 are instructions. (Sample used for photography) ⚠️ Not included. Shipping will be via Rakuraku Mercari Bin or Yu-Yu Mercari Bin. (Anonymous shipping) ⚠️ As a stringed instrument player, I make these with care and attention to detail, but as they are handmade, please refrain from purchasing if you are overly concerned about minor imperfections. Thank you very much!