Two-in-One! Erhu Cover Introducing a two-in-one erhu cover that's a first of its kind! When storing an erhu, many people use erhu covers or cloth to prevent rosin from the bow hair from sticking to the strings and to avoid catching the bow hair on the fine tuner adjusters. This erhu cover adds another function! This [Erhu Cover NC-02] has a friction-based fabric on one side of the cover, which provides a "non-slip" function. You can place it under the erhu when playing to prevent it from moving. ▼Features: Use as a cover when storing the erhu. ⇒ Prevents rosin from the bow hair from sticking to the strings during storage, reducing stickiness and protecting the strings. Use as a non-slip mat. ⇒ One side is made of non-slip fabric, so you can place it under the erhu during practice to prevent slipping. As a result, the erhu won't move, allowing you to maintain the correct playing posture and making it easier to play. Type: Erhu