Material: Polyester Brand: Sonic Acoustics ★ Due to compression, the shape and number of pieces are unknown. The image on the site may not be representative. The product name is 【Sonic Acoustics Sound Absorption Material 5】. Please be sure to understand this before purchasing m(_ _)m The sound absorption and sound insulation effects of sound-absorbing panels are determined by the density and thickness of the sponge. Sonic Acoustics sound absorption material has increased the thickness to 5 cm compared to conventional sound-absorbing panels. By adopting a high density of 25kg/㎥, it absorbs more sound than conventional products, reduces unwanted reverberation and echo, creates a necessary quiet environment, and allows you to work, relax, and sleep without being disturbed. Although it is new and unused, please understand that it is stored by an amateur m(_ _)m #Marumaru Shop We have various items for sale, so please take a look.ᐟ.ᐟ.ᐟ Sonic Acoustics Sound Absorption Material, Extra Thick Soundproof Sheet, Soundproof Wall, High Density Urethane Foam, Sound Absorption Panel, Sound Absorption Measures, Interior Decoration, Musical Instruments, Soundproofing, Noise Reduction, Soundproofing, 2 pieces, 2 packs, Acoustic Isolation Pads, Studio Monitor Speaker Isoform Pads, 5-inch Monitor for a pair of two high-density studio monitor isolation pad pairs 30*30*5cm Extra Thick Soundproof Wall High Density Urethane Foam Sound Absorption Panel Sound Absorption Measures Interior Decoration Musical Instruments Soundproofing Noise Reduction Soundproofing (1.08㎡ 12 pieces) Black 62-10