PUZZLE CHALLENGE: Features an intricate nested screw design requiring sequential solving of multiple layers, perfect for creating an engaging gift-giving experience This product is a gift box. Inside the box are circles, similar to matryoshka dolls. When you open it, it gets smaller and smaller. There are a total of 10 layers PERFECT SIZE: Measures 4.0 x 4.0 x 4.0 inches, ideal for holding money, small gifts, or special surprises while maintaining portability ENTERTAINMENT VALUE: Transforms ordinary gift exchanges into memorable moments of fun and laughter at parties, birthdays, and holiday celebrations DURABLE CONSTRUCTION: Built with sturdy materials and precise engineering to ensure a challenging yet solvable puzzle experience suitable for ages 12 and up Item Name: Gift Box Material: PLA Features: Versatile Gifting, Durable Construction, Versatile Application Size Details: L: 10cm/3.94", W: 10cm/3.94", H: 10cm/3.94" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Gift Box