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- Self-assembly: no glue or tools required
- Adult construction set
- Made from Eco-friendly sustainable wood
- DIY mechanical models that actually function after assembly. Press out each piece from the flat sheet, and assemble each one.
- A unique gift for that someone in your life that enjoys a challenge. It's a brain-teasing 3D puzzle that will become an addiction.
- This fully functioning safe locks and only the person who builds it will know the true way to unlock the safe!!