Modeled after the classic green-skin train, it seamlessly blends nostalgic railway charm with practical functionality.

- Exterior Design: Recreates the iconic green-and-yellow color scheme and window details of the green-skin train, with the “Chongqing–Shanghai” route label printed on the side, evoking memories of travel and a deep sense of regional identity.
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- Structural Features: Adopts a disassemblable, modular design that requires no glue; precise snap-fit and interlocking joints allow for secure assembly with just a gentle tap using a hammer, making it easy to print and transport.
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- Functional Layout: The top features multiple compartmentalized sections for neatly storing pens, pencils, gel pens, and other stationery, keeping your desk tidy and organized.
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- Materials and Craftsmanship: Optimized for 3D printing, with fine layering and vibrant colors, this piece serves as both a practical office accessory and a charming retro-style desktop decoration.