these breadboards are a great deal. the only issue i had was that the crossbar on one 5-pin section was missing. it was all the way at the top (or bottom.) of the board, so it really didn't matter. who uses all the pins on the breadboard anyway. i should probably contact the vendor about it, but i'm not sure it's even worth the trouble. so i have 825 pins on the board, rather than 830.
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