Description The sound insulation board made of good material is durable and has excellent texture, which can help you reduce noise and isolate noise. It has good craftsmanship and creates a more quiet and comfortable environment for you. It is an indispensable tool for recording studios, bars, and KTV. Features -Color:Black -Material:Sponge -Size:24.00X12.00X12.00cm/9.43X4.72X4.72in -Professional absorption of indoor reverberation, to create quality music space. -The surface is full of dense pores to absorb the acoustic energy and reduce the reflected volume. -Premium materials and good craftsmanship ensure its durability and practicality. -Cost-effective, you can buy this practical product at an affordable price. -Acoustically treated wall panel for an ultra clean look and added sound absorption.Package list: 3 x sound-absorbing cotton tools