Your challenge - trigger the flashing blue LED lights by joining the 3-D puzzle pieces into a complete circuit, while keeping the orange barriers outside and the blue barriers inside the circuit loop. Think it's easy? Cool Circuits Over The Top has 40 diabolical challenges to solve, ranging from student to expert. Can you solve them all? This puzzle emphasizes spatial reasoning and abstract thinking. Requires 3 AAA batteries (included). Learning Skill: Creative Thinking Use: Indoor Measurements: 8 Length/Inches, 3 Height/Inches, 8 Width/Inches Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported