© 2023 SANRIO CO., LTD. APPROVAL NO. L642324 <strong></strong> <strong>nanoblock® Licensed </strong> The nanoblock® Mini-Collection Licensed Series recreates micro-sized versions of all your favourite Sanrio characters! nanoblock® is the original micro-sized building block. The smallest part is a mere 4x4x5 mm! Completed nanoblock® Mini-Collection models are small enough to fit in the palm of your hand. Each nanoblock® set comes with spare blocks and detailed step-by-step building instructions.