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I recently bought some micro breadboards on Ebay. Extremely useful little things. However each have two awkward studs on their bases. See the attached photo. What I'm curious about is their purpose? What might these "plugin" to or be used for? I think I'm going to file them off.

enter image description here

Kolban
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They connect to a base that fixes them with regards to each other.

enter image description here

Ignacio Vazquez-Abrams
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I'd guess that these things are part of a system that includes a baseboard that the studs on your part can snap into, so you won't have the individual pieces sliding around the desk.

Peter Bennett
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