With bricks as small as 4mmx5mm and manufactured to the highest tolerances for a perfect fit, make amazing 3D art that fits in the palm of your hand. The classic new York city landmark, once the tallest building in the world, this dramatic Nanoblock NBM004 stands over 8 inches tall. For ages 8 and up. WARNING: CHOKING HAZARD – Small Parts. Not for children under 3yrs.