●Carbon fiber composite compression box: The box is made of carbon fiber and adopts a multi-layer composite compression structure. The surface is more wear-resistant and drop-resistant, and can withstand greater impact. ●Thick lining of scientific space: Reasonable and clear space layout, easy to place. The thickened inner lining design effectively reduces friction and impact and protects the Viola from damage. ●Sophisticated Design: The Viola case has a built-in hygrometer, which allows to ensure a good viola shape and sound quality inside the case. ●Universal viola case: the neck pad is designed with Velcro, which can be moved freely, and it can be used for violas from 15 inches to 16.5 inches. ●Easy to carry: Lightweight and easy to carry while protecting your instrument. Dual shoulder straps transform the bag into a backpack.