The 2-Layer Smart Egg is a mind-bending, difficult brain teaser with one labyrinth that moves inside of another labyrinth. Puzzlers who welcome a challenge will find one with this collection. The inner labyrinth moves up and down and turns for added difficulty! A base is included for easy display. Use: Indoor Measurements: 3.375 Width/Inches, 7.125 Height/Inches, 3.375 Length/Inches Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported