This is a case that can store up to 4 N-gauge model train cars. The case size is approximately 155mm (height) x 185mm (width) x 30mm (depth), which is A5 size. The case itself was purchased from a 100-yen shop, but the storage section is an original design, custom-made by a domestic processing company, and the quality is comparable to manufacturer products. Initially, it was for my own N-gauge storage, but it's so convenient that I'm selling it at a flea market. Removing the center urethane allows for storage of 20-meter class cars, and removing the end urethane allows for storage of up to 21-meter class cars. The train cars are for storage sample purposes and are not for sale. Nshell Small N-gauge case, set of 5