The Kragle is a fictional substance from the animated film The Lego Movie. It is depicted as a powerful adhesive that can permanently bond Lego bricks together, preventing creativity and imagination. The Kragle is a central plot element, representing the conflict between order and chaos in the Lego universe. In the film, the main antagonist, Lord Business, uses the Kragle to enforce his vision of a perfectly organized world. This leads to a battle between the free-spirited characters, like Emmet Brickowski, and the forces of conformity. The Kragle symbolizes the dangers of rigid thinking and the importance of creativity.