Due to moving, I had lowered the price, but I've moved it to storage, so I've returned the price to its original level. otodasu Sound-absorbing wool was packed inside, and sound-absorbing materials like urethane were attached to the ceiling. *These were torn during disassembly and have been discarded. The sound-absorbing wool is Tokyo Bouon's White Cue-on. Currently, soundproofing mats are also attached, so I will send them as is if you wish. I can also give you the sound-absorbing materials as they are, but since I will disassemble it once, please re-adhere them. When peeling them off, some black adhesive residue may remain. I've attached black soundproofing material around the door, and I've decided it's better not to remove it, so I've left it as is. I will disassemble it as carefully as possible, but I don't know how much residue will remain after peeling it off, so this is a bargain sale. The sound-absorbing materials that cannot be removed will be given as is, as their performance is better that way. No returns or exchanges. I would appreciate it if you could pick it up in Hyogo Prefecture. This is the product description from Mercari at the time of purchase. Below are the product details. S-OTODASU II LIGHT is a prefabricated, simple soundproof room designed with lightweight materials that provide soundproofing. It can be assembled without tools, providing a wide individual space. It offers excellent cost performance, balancing soundproofing and affordability. It can be used in various scenarios. It has a soundproofing performance of about Dr-15 (ordinary soundproof rooms are about Dr-30~40). Detailed Information Based on an internal dimension of 1,100mm x 1,100mm, we propose a model with expanded internal dimensions to pursue a greater sense of openness and convenience for various uses. 11x12D model: Depth expanded by 100mm ●Size: External dimensions W1,240mm x D1,340mm x H1,917mm / Internal dimensions W1,100mm x D1,200mm x H1,900mm OTODASU soundproof box designed to block sound. Ideal for musical instrument performance and recording. - Brand: OTODASU - Type: Soundproof box - Features: Sound-blocking design - Intended use: For musical instrument performance and recording Thank you for viewing.