nanoblock and (nano block) it? one raised dot is a block of super-mini size of the world's smallest class of 4mm x 4mm slightly nanoblock. It is a characteristic of the greatest can be fabricated to a small part that could not be reproduced， of course， smaller， and can make a cute work in the block of the general size taking advantage of its small size. I enjoy adult immersed. Thoroughly， I can pursue the completion of the work. nanoblock is a block of a whole new hobby for adults. With instructions in the form of a small book