The LEGO 3700 Brick is a set of 10 blue 1 x 2 bricks, perfect for building and creating with LEGO sets. Ideal for ages 6 and up, these bricks come in a variety of colors and are washed and sanitized for cleanliness. The LEGO set number 3700 is part of the Bricks Bricks Bricks collection, ensuring endless possibilities for imaginative play and construction.