Build a combination lock box with two working locks -- one for each compartment. A genuinely satisfying STEM build that teaches mechanical engineering through a project kids can actually use to secure their stuff.
DIY combination lock box STEM kit with two working combination locks
All materials included, teaches mechanical engineering and lock mechanics through assembly
Combination Lock Box DIY Kit, Educational STEM Toy
Regular price$18.00Sale price$18.00
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Combination Lock Box DIY Kit, Educational STEM Toy
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