Thank you for viewing. Sound Absorbing Material, Sound Absorbing Board, Hard Acoustic Felt Board, Set of 12, Perfect for Practice Rooms, Recording Studios, and Offices, Noise Reduction, Soundproofing, Sound Insulation, Moisture-Proof, and Flame Retardant 【Size】30cm x 26cm x 0.9cm (※Please note that there may be a 0.1cm error due to amateur measurements) 【Material】High-density 100% polyester fiber 【Effects】Sound absorption, decorative, environmental protection, insulation... "Principle of Sound Absorption" Many sound absorption holes within the material absorb sound, convert it into thermal energy, and then absorb it. 【Easy to install and create a comfortable environment】 Soundproof panels that are easy to install are the perfect item for busy modern people to reduce the effects of sound and create a comfortable environment. 【Lightweight design that is easy to apply】 The soundproof panels made of 100% polyester material are lightweight at 160g per panel and can be easily applied to the wall. In addition, the cut 45-degree angled corners allow for beautiful application even on large walls. 【Versatile use】 Soundproof panels can be used in various rooms such as conference rooms, studios, bedrooms, and living rooms. They are also useful for preventing reflections from lighting fixtures. 【Cost-effective soundproofing measures】 Sound-absorbing panels provide high insulation, preventing the indoor temperature from rising even on hot days, allowing you to stay cool. They also protect the room from cold air on cold days and maintain a comfortable temperature. Energy-saving effects can also be expected by improving the efficiency of air conditioning.