Start a museum at home, at the office or at school with this fantastic mini whale skeleton. These micro pieces ensure flawless detail that will leave you awestruck! The Nanoblock Blue Whale Skeleton is a brilliant desk accessory or birthday present for anyone who enjoys puzzles, construction sets, or a fun challenge! The small building blocks are accompanied by detailed colour instructions and spare nanoblocks - always handy! 380 pieces. Difficulty level 5.