This early educational toys allow children to acquire a strong sense of architectural design, problem-solving skills, logic training, engineering knowledge, imagination and brain development. Replace screen time and encourage actual play. The 125-piece fort building kit gives children endless possibilities for creating unique forts. Combine with multiple PicassoTiles sets to create enormous structures. The colorful building pieces are great for pretend play, group activity, kindergarten, grade school and more.  Through building forts and structures together, children learn collaboration and cooperation. Easy to construct and easy to put away for storage, they are great at home or in the classroom. Each glow in the dark fort building kit connector comes with 43 color vibrant geometric connectors and 82 reinforced connecting tube sticks. This kit is made of BPA-free, child-safe and lead-free premium materials that are tested to ensure quality and meet safety standards for children to play freely and expand their curious minds in any kid-safe construction building environment indoor or outdoor.