UGears Safe Mechanical Model 3 D Wooden Puzzle Kit for Adults DIY Storage Box 3D Exclusive Self Assembly Kits to Build

Real Working Combination Lock: 3D wooden puzzle building kit features an authentic tumbler mechanism allowing you to set and use your own three-digit code with tactile feedback and clicking sounds Spacious Storage Compartment 3D Puzzle: The generous 6.1 × 5.5 × 4.1 inch interior of wooden models for adults provides ample space for jewelry, small collectibles, gift cards, or secret treasures. Advanced Mechanical Challenge: With 179 precision-cut wooden parts, this advanced-level brain teaser wood models for adults to build offers a satisfying build experience for puzzle enthusiasts No Glue Required: All pieces of building kits for adults fit together perfectly using Ugears' innovative joint system - no adhesives or special tools needed; greate as hobbies for adults men or women Unique Gift: Perfect present for puzzle lovers, woodworking enthusiasts, escape room fans, or anyone who appreciates functional mechanical art with a touch of mystery for Birthday, Christmas or Fathers Day