【Pet Oxi Hotel (Oxygen Chamber)】 There are no noticeable stains. It has only been used once, so it is very clean. Please understand that this product has been used and has changed hands once before purchasing. Please refrain from purchasing if you are concerned about minor details, as it has been stored at home. ■Product Name Pet Oxi Hotel Square S Size ■Size Width 50 x Depth 60 x Height 50cm ■Target Pets Small to medium-sized animals Dogs (Chihuahua, Yorkshire Terrier, Pomeranian, etc.), cats, ●Parts List Storage bag (black) Replacement skylight, transparent and mesh, 1 each 4 fixing pegs 1 tube Instruction manual We will reuse cardboard and cushioning material for packaging. An oxygen concentrator is an optional item and is not included with this product. *An oxygen concentrator is required when using it as a pet oxygen chamber. Thank you for viewing. ■Manufacturer Unicom Co., Ltd.