Self-adhesive felt sound dampening panels Excellent sound absorption- Made from light sturdy high-density 100% polyester fiber material (2000g/m³), which has elasticity, toughness, abrasion resistance, impact resistance, scratch resistance. And they also have echo reduction and improved sound quality. Better sound absorption effect than foam soundproofing board. Flame retardant material Interior Wall Decoration- 11.8’’ X 11.8’’ X 0.35’’. DIY you own bulletin board in your favourite space, pin photos, notes or artwork at home or in the office to create a warm and lovely atmosphere. Our decorative acoustic panels are more attractive than ordinary sound-absorbing panels Easy to Install- Just peel and stick, no glue, stable adhesion, no need extra 3M double sided tape. You can use scissors or a artisan's knife to cut any sizes of small squares to create your own acoustic & bulletin boards Wide Applications- Odourless and Eco- friendly, Non-allergenic, Recyclable, making it great for any location in the home or office, it's safe for adults, kids, and pets! It can Improved acoustic quality and especially used in recording studios & offices & home theaters etc. Compared with ordinary acoustic materials, it is so hard to imagine any reason to reject this perfect acoustic bulletin Panels