This is a slim type. I bought it new and used it for six months. I installed it to prevent my cat from going to the second floor at night, but the separation anxiety was so severe that the cat kept scratching and rattling, so I gave up and decided to remove it. The door doesn't open as smoothly as I expected, so it's best for installation in a place you rarely use or for someone who can make adjustments. I don't feel much yellowing, but there are many scratches. Includes the instruction manual and the main unit. Everything shown in the photos is included. *Reasons for the defect:* 〇 The door no longer opens and closes smoothly after my child knocked it over. It may be due to improper installation. 〇 Not all of the included parts listed in the instruction manual are included. 〇 There are countless scratches because the cat scratched and chewed on it (see images). 〇 I will wipe it with an alcohol wipe before shipping, but I cannot perfectly clean every small groove. 〇 I discarded the original box, so I will use a lot of cushioning material. Because of the defects, I'm selling it at a significantly reduced price from the original. Please refrain from purchasing if you are looking for a pristine item. Also, I can only ship on certain days, so it may take some time for shipping. Thank you for your consideration. #PetGate #CatSupplies #Noborennyan (Climb-Up Cat Gate)