Thank you for viewing! This is a storage solution for N-gauge model trains, compatible with the SHIKIRI 0 case made by Yamada Kagaku, sold at 100-yen stores. It's an original product, uniquely designed and manufactured in a domestic factory. * This product does not include the case. Please purchase the case separately at 100-yen stores like Seria, Can Do, or Daiso, as it's a standard item. * Suitable for storing 15-21.5M class N-gauge model trains. * The set includes three pieces: an inner sheet to hold the trains, a bottom sheet, and bubble wrap to cover the top. * Please remove the urethane foam carefully. Pulling it off forcefully may cause warping. * The model trains in the images are for illustrative purposes only and are not included. * As it is a new product, there may be a chemical odor upon opening, but it will dissipate in about two weeks. * If you are concerned about the warping of the inner sheet, please purchase the separately sold spacer sheet and insert it under the trains to provide support. Alternatively, you can wrap the trains in thin paper. Thin paper can also be used to protect the trains. Combined transactions are possible, but to keep prices low, the price is based on the Yu-Packet Post shipping cost. Therefore, we may not be able to accommodate all requests. Thank you for your understanding. This product is sold year-round. We would appreciate it if you would follow us from our profile. You are welcome to complete the transaction without any communication. Thank you. Nshell (N-Shell) (Set of 5) Urethane inner sheet that turns a 100-yen case into a 7-car N-gauge storage case. ※Caution! There are instances of high-priced, inventory-less reselling of this product on Amazon. We have no sales agreement with Amazon sellers; they are simply resellers. Please do not purchase from Amazon under any circumstances.