Building bricks come in three different sizes! First of all, the most common one is the standard block brick, which has a length, width and height of 390 mm, which is as strong as a strong muscular man. Secondly, there is also a decorative block brick, whose length, width and height are 310×150×150 mm respectively. It is small and exquisite, and is especially suitable for decoration. Finally, there is also a large block brick, with a length, width and height of 605×250×200 mm, which is simply a giant! Isn't it interesting?