Features: Made of Silicone, soft, Enduring, easy to use.
Quick and easy to install and remove without any tools required.
Soft Silicone insert ensures a secure fit and will not damage your guitar's finish.
Greatly reduce feedback and increase stage volumes.
It also can prevent dust from falling in guitar case, keeping it clean.

Specifications: Materials: Silicone
Size: Small/Large
Small outer diameter: about 9.2cm/3.62inch
Large outer diameter: about 11cm/4.33inch

Package Includes: 1pc Acoustic Guitar Soundhole Cover

note: Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color of the item.