Thank you for viewing! This is a storage solution for N gauge model trains, compatible with the SHIKIRI 0 storage case from 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 it separately at 100-yen stores like Seria, Can Do, or Daiso, where it's a standard item. * Suitable for storing 15-21.5M class N gauge model trains. * Includes a set of three items: an inner sheet to hold the trains, a bottom sheet, and bubble wrap to cover them. * Carefully remove the urethane foam. Pulling it off forcefully may cause warping. * The model trains in the images are for illustrative purposes only and are not included. * As a new product, it may have a chemical odor upon opening, but it will dissipate in about two weeks. * If you are concerned about the inner sheet warping, please purchase the separately sold spacer sheet and use it as a support on the bottom side of the trains. * If you are concerned about scratches on the trains, please protect them with thin paper. Combined transactions are possible, but to keep prices down, 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 10) Urethane inner sheet that turns a 100-yen store 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 any Amazon sellers; they are simply resellers. Please do not purchase from Amazon under any circumstances.