Zometool Crazy Bubbles Kit gives all the fun of mind blowing bubbles. Square bubbles? Yesterday's news. Try cubic bubbles, pyramid-shaped bubbles or spiral ones. Tons of bubbly fun for the whole family. Perfect for rainy days, family gatherings or as a birthday gift. For the science-minded there is plenty to chew on here, explore minimal surfaces, experiment with Hamiltonian paths and more. Great for science projects. Clear and colorful step-by-step instructions will get you started while leaving you a wide range of possibilities open for exploration and free-play. Zometool is treasured by kids and Nobel Prize winners; it has been included in lists like Forbes’ “Top Toys That Kindle Kids' Creativity” and Time’s “Toys That Will Make Your Kids Smarter". Contains 52 precision-made components. Ages 6 and up. Zometool is 100% made in the USA using kid-safe materials. All Zometool kits are guaranteed for life by manufacturer.