FunPhix construction sets provide an excellent way for your kids to learn while having fun. Our STEM toys are designed to allow your kids to create a sturdy indoor playhouse, kids climbing toys, or sports & outdoor play toys for playtime. Shop now and get your kids started on their designs today! FunPhix construction sets are the perfect way to teach your kids about engineering, physics, and other stem concepts. As they build and play, they’ll learn valuable skills that will help them in school and life.