This is a Wittner chin rest for violin. Product Name: Wittner Chin Rest for Violin "Kinnhalter zentriert" (Center Mount Type). Features: It is labeled "ANTIALLERGIC," indicating that it uses materials that are considerate of people with allergies. Made in: Germany. I tried it out 2 or 3 times. If your playing posture is more centered, or if your current chin rest doesn't fit, please consider this. I purchased it for 5500 yen. Thank you for looking.