Features: Use a guitar muffler to reduce the volume of your guitar and reduce noise while you practice your guitar without disturbing others. The inner side is designed with a soft sponge, which does not hurt the guitar strings. Easy to install and remove, no tools required, 6 slots are aligned with 6 strings, just press down. When not used as a mute, it can also be used as a pick storage, which can hold at least 6 guitar picks. For 6-string guitar (common for classical/acoustic guitar), the package includes 1 Pc Guitar Muter, 6 Pcs Guitar Picks. Specifications: Material: Stainless Steel + EVA Size: Approx. 7.9x1x1cm/3.11x0.39x0.39inch Package Includes: 1x Guitar Muter 6x Guitar Picks note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.