small, interlocking plastic blocks colorful, often brightly colored blocks a variety of shapes, including rectangles, squares, cylinders, and triangles a stud on the top of each block a hollow tube on the underside of each block a variety of sizes, from tiny 1x1 blocks to large 16x16 blocks.
lego which has small, interlocking plastic blocks lego which has colorful, often brightly colored blocks lego which is a variety of shapes, including rectangles, squares, cylinders, and triangles lego which is a stud on the top of each block lego which is a hollow tube on the underside of each block lego which is a variety of sizes, from tiny 1x1 blocks to large 16x16 blocks.