Use our Strings Sizing Chart below to determine the correct instrument size for your student. For the comfort and ease of playing, violins, violas, and cellos are available in several sizes. Getting the right size is very important for the student to learn properly. An instrument that is too big can be nearly impossible to play, while one that is too small may not produce the best tone and technique. Determining the size of the instrument is important and easy. Finally, follow the convenient chart below to determine your size.