- Color: White - Thickness: 9mm - Size: 30cm x 30cm - Suggested Retail Price: ¥8,580 Please understand that this is a used item before purchasing. If you have any questions, please comment. You can purchase immediately without commenting. [Condition] 2 out of 3 packages are unopened. 1 package has been opened, and only one board has been attached with insect pins. There is an original stain/pattern on that board only. Please refer to the images. *Insect pins are also included. *No smokers or pets. *Shipping of only unopened packages is also negotiable. [Shipping] We will reuse used cardboard and pack with cushioning material. - Brand: YOPIN - Material: Sound-absorbing material 200kg/m² - Size: 3.24m² - Sound Absorption Performance: 36dB - Maximum Sound Absorption: 85% YOPIN Sound Absorbing Material 200kg/m³ High Density Sound Absorption Board Sound Absorption Measures Interior Decoration Musical Instruments Soundproofing Noise Reduction 30cm x 30cm Easy DIY Flame Retardant Moisture Proof Insulation Sound Absorption Panel With Insect Pins Push Pins 36 sheets