Products Features: - Density: Each panel is 150kg/m3 dense. - Eco-Friendly: Each panel is made of 100% Polyester Fiber. - Easy to Install: Can be installed by anyone! Can be anywhere in the position desired! - Easy to Remove: Simply detach each panel and reinstall to the new desired location - no holes in your walls! - Safe for All: Flame Retardant, odorless, and do not alter air quality making it safe for adults, kids, and pets! More Features: - JBER acoustic foam panels feature a classic design that offers excellent sound deadening and echoes absorption. - Made up of high density polyester fiber, is a perfect broadband sound absorber for rooms like recording studio, home theater, offices, etc. - An affordable choice for soundproofing a room of any size, our wedges, convoluted, bevel or hexagon, acoustic foam panels is easy to shape and cut to size. - It is designed to trap reverb, eliminate echo, and reduce noise. In addition, it comes with lifetime technical support to ensure your satisfaction. - Quality, service, this product is what you are looking for! - It is easy to cut with knife and has multiple color options. Just DIY your own style! Package Includes: - 12 Pack Set Acoustic Absorption Panels - 12" X 10" X 0.4" / 30 X 26 X 1 cm