3D Adult 3D Puzzle Password Music Box for DIY Home Decor Gift Women Men 104pcs

* Wooden Mechanical Transmission 3D Puzzle: A challenging adult-level 3D puzzle model that integrates a mechanical transmission structure and a combination lock, offering both stress relief and a sense of accomplishment.    * Three-Digit Combination Lock System: Supports customizable three-digit combination locks. Unlocking is achieved by rotating the lock clockwise or counterclockwise, faithfully replicating the operation logic of a mechanical combination lock box.    * Practical Internal Storage Space: The main compartment measures approximately 75×45×55mm, suitable for storing regular lipsticks, jewelry, and various thoughtful gifts, combining toy functionality with practicality.    * Top Petal-Shaped Hidden Compartment Design: A rotating mechanism on the top opens a petal-shaped hidden compartment, approximately 30×30×8mm, ideal for storing small items like rings, adding a touch of surprise.    * Security Unlock Switch: The unlock switch opens the lid only when the combination is correct. It automatically locks when closed and the combination can be scrambled, enhancing interactivity and security.