Available for immediate purchase! 【Extremely Thick * High Density & Excellent Sound Absorption】The sound absorption and sound insulation effects of sound-absorbing panels are determined by the density and thickness of the sponge. Compared to conventional sound-absorbing panels, Sonic Acoustics sound-absorbing material has increased its thickness to 5 cm. By adopting a high density of 25kg/m³, it absorbs more sound than conventional products, reducing unwanted reverberation and echo, creating a quiet environment, and allowing you to work, relax, and sleep without being disturbed. #kkkn14's products ⬅️ This is it ☆ *Please understand that this is a home-stored item. *In order to offer the product at a slightly lower price, we may ship it after removing it from the box due to shipping costs. *Please check the actual photos for the condition of the product. *We have opened the product for inspection and photography, so please purchase only if you understand this. *We may change the shipping method from Rakuraku Mercari to Yu-Yu Mercari. *In the unlikely event of a defect, please be sure to contact us 【Before evaluation】 (We will not be able to respond if you give us an evaluation) *If you have any questions, please feel free to ask in the comments section! 9-45☆☆☆☆☆