Quality Building Blocks, Security, Environmental Protection, No Burr, Slick Not To Injury. building blocks for kids Brick & BlockBuilding Blocks for Kids comes in a zippered packet with a handle, which makes it very convenient to store the blocks and carry them from one place to anotherFunction: Helps develop intelligence, the sense of grab, creativity and imagination, improve dexterity, and develop visual sense.Building Blocks for Kids comes in a zippered packet with a handle, which makes it very convenient to store the blocks and carry them from one place to another