Cardboard reinforcement on one side + waterproofing only. 【Important】 ※Regardless of whether the item is new or used, all items are stored and inspected by an amateur, so please refrain from purchasing if you are looking for a perfect item. Also, there may be initial scratches. We cannot respond to those. ※I have a cat. There is a possibility that cat hair may get mixed in no matter how careful I am. If you are concerned or have allergies, please refrain from purchasing. ※Recycled packaging may be used, but we will do the minimum necessary packaging. If there is a description in the product description, that takes priority. ※Shipping method May change from Rakuraku to Yuyu or vice versa. If you pay the difference, we will accommodate your request as much as possible. In that case, there may be discrepancies due to home weighing (we cannot handle discrepancies). We are not responsible for shipping accidents. ※If you are paying at a convenience store, please let us know your specific payment date after purchase. If we cannot confirm within 24 hours of purchase, we will cancel the order. ※Reading the profile is not required, but we will not be able to respond to any problems caused by not reading it, so please understand. Purchase = You agree to the items described in the profile/product page.