The nanoblock Mini-Collection Licensed Series recreates micro-sized versions of all your favourite Sanrio characters! nanoblock is the original micro-sized building block. Completed nanoblock Mini-Collection models are small enough to fit in the palm of your hand. Each nanoblock set comes with spare blocks, a display baseplate and detailed step-by-step building instructions. This nanoblock, Hello Kitty model is a Level 2 build and has 140+ pieces. Level 1 being the beginner level and 5 being expert build.