I assembled this set a while after purchasing it new, and displayed it for a time. As a result, it had some dust on it, so I washed it clean with lukewarm water and dried it. I disassembled it while comparing it with the instruction manual. 【Product Overview】 • This is the popular LEGO IDEAS series set "International Space Station (ISS) 21321". • With its elaborate design, it is a very popular model among space fans and LEGO collectors. 【Features】 • Realistic reproduction of the ISS (International Space Station) • Finely designed adjustable solar panels and modules • Includes a space shuttle, cargo spacecraft (Dragon supply ship, Cygnus supply ship), etc. • Comes with a display stand, making it ideal for viewing 【Specifications】 • Set number: 21321 • Number of pieces: Approximately 864 pieces • Target age: 16 years and older • Size: Approximately 20cm high × 31cm wide × 49cm deep 【Included Items】 • Instruction manual • Outer box included 【Uses】 • For space fan collections • As a science and educational material • As an interior accent or display model 【Benefits for Buyers】 ✅ This product is especially recommended for "those who love space and science" and "LEGO collectors"! ✅ A highly complete display model with a design that looks great as interior decor. ✅ A popular LEGO IDEAS set with high rarity value, making it a valuable collection for the long term. 【Notes】 Although it is a beautiful item, it has been assembled once. I have checked for missing pieces twice while disassembling it for sale. I don't think there are any missing pieces, but this is a visual inspection by an amateur. There may be oversights or mistakes. The photos are all that is included. Even if there are any missing pieces, I cannot provide any additional support. Returns are not accepted to prevent swapping. Please purchase with your understanding. Thank you for viewing.