🎻【Excellent Sound Absorption】 The sound absorbing panels is made of 100% high-density polyester fiber. In the sound range of 125-4000 Hz, the overall noise reduction coefficient(NRC): 0.85~0.94. It can absorb reverberation and echo, enhance the acoustic effect, better sound absorption effect than sound proof foam panels. They are perfect for offices, bedrooms, living rooms, game rooms and music studio. | ✅【Self-Adhesive & Easy to Install】With a strong adhesive on the back, just peel and stick, no extra purchase of 3m double-sided tapes. | 🎀【DIY Decoration】Our trapezoidal acoustic panels are designed with beveled edges, which can be spliced into many funny and colorful patterns. It's also easy to cut to meet your personalized needs, perfect for decorating walls, adding a sense of technology and modernity. | 💗【Dimension】The size of the sound proofing padding for wall is 3.94" x 7.87" x 3.94", 0.35" thick, and weight is 1.43 lbs. The package contains 36 trapezoidal sound deadening panels, covering an area of up to 6.7 sq ft(6235 c㎡). | 🍃【Safe and Non-toxic】 Made of environmental friendly, non-toxic, recyclable materials, no irritating odor, it's safe for adults, kids, and pets!