SmartMax Extra Long Bars Extension Kit expands creative building possibilities with longer magnetic bars designed to take constructions to the next level. Perfect for building bigger, taller, and more dynamic structures, these extra-long bars encourage experimentation with balance, movement, and basic engineering concepts. Made with SmartMax’s signature strong, child-safe magnets, the pieces are easy for young hands to connect and explore. This extension kit is ideal for enhancing existing SmartMax sets and inspiring even more imaginative STEM-based play.