Thank you for looking! I am selling this as my child has graduated. All the parts fit together, allowing for various constructions. Please Note: For those who understand the following points: ・Some parts have broken joints, are missing, or are stuck in holes. ・I can't count them all, so I don't know the exact number of parts. (I will ship as is) ・Many of the white parts are discolored to yellow. Some of the white parts are glow-in-the-dark. Thank you.