Discover how to crack the code of an ancient puzzle with this 14 pieces kit.
Build a combination lock mechanism and explore how it works.
Did you know
Did you know that each combination lock is a puzzle?
Only one combination can open the lock’s unique design?
Each kit comes with simple step-by-step instructions and fun activity booklet.
Made of durable, recyclable cardboard.
We bring science to life with fun and imaginative toys, and our innovative products are designed to excite children and delight parents.