Feature: 1. Upgraded: The newest self-adhesive design Acoustic Panels which make super long time stick. Three steps for install: opening the packet, tearing up and sticking it.Don't need to prepare extra tapes.The longest stick time in the market.2. FASHIONABLE DECORATION: Different from acoustic foam panels, it's colorful and well appearance. It is really good for decorate the wall. Acoustic Panels will be a fashion item on your wall.And it is also an excellent acoustic treatment for on-site sound processing on the wall of many places.3. WIDE APPLICATIONS: Acoustic Panels are applying for studio&home, entertainment theaters, home offices. Acoustic Panels are perfect and safe material for adults, kids, and pets!4. IMPROVED ACOUSTIC QUALITY: Acoustic Panels are high density, non-toxic and Formaldehyde-free. Excellent acoustic treatment for on-site sound processing on the wall of many ares. tip: Adhesive color random, Cannot be chosen the specific color. Material: Polyestercolour: purple Package Contents: 12 x Acoustic Panels Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.