New, handmade item. Returns and refunds are not accepted. While I carefully craft each piece, due to the handmade (manual) nature of the work and the properties of wood, there may be slight warping, deviations of a few millimeters, or small gaps that do not affect the functionality. Product Description Constructed with MDF material, I believe it has a clean appearance. The interior dimensions of the pet soundproof room are approximately: Width: 90cm, Depth: 60cm, Height: 44cm This should be spacious enough for small dogs. Weighing 13kg, it's very lightweight for a pet soundproof room. The door is made of acrylic, making it easy to see inside. The door is a sliding door that opens to the left and right. (Photos 9, 10, 11) The door can be locked. A cushion floor is laid on the floor. It also has a ventilation fan. The fan is quiet. (Photos 13, 14) The regular-sized tray in the photo is for size comparison and is not included. (Photo 15) LED light bulbs are an additional 5000 yen. Precautions for Use In the summer, be sure to use the soundproof cage with air conditioning. Because it is an enclosed space, the temperature inside the soundproof cage will rise due to the animal's body heat if air conditioning is not used. This pet soundproof room has natural ventilation, so if you turn on the air conditioner, the inside of the soundproof cage will also cool naturally. A ventilation fan is also included, so it is safer to use the ventilation fan in the summer. About Soundproofing The room where the pet soundproof room is installed sounds normal, so please listen from a distance. You will better understand the meaning of soundproofing if you listen in the next room or another room. It may also be helpful for dealing with neighbors. *How to Improve Soundproofing Performance Unlike soundproof rooms for humans, pet soundproof rooms are small, so you can improve the soundproofing performance just by covering them with a futon, as shown in the photo. *Thin, summer futons are not very effective. The sound will not be reduced unless there is a certain thickness. The futon in the photo is an all-season, inexpensive comforter purchased from Amazon. *The futon in the photo is not included.