
Build quality is good, better than other breadboards I've used. Unfortunately, the row numbering is wrong on the long boards (see accompanying photo). Rows are numbered every five rows, but there is a row missing between rows 5 and 10. This results is all holes below 5 having the wrong row number. I ordered 4 of these set for a total of 8 long boards. All have the same problem. All are mounted together on a board in a 2x4 layout. You can see in the photo that the top of one board is butting up against the bottom of the one above it. Looking at the row numbers, the top board looks like it has 64 rows: it really only has 63. You can see the missing row between rows 5 and 10. If I had noticed the misprint before mounting the boards, I would have returned the lot. Too late now. If you don't use row numbers is your layouts, this won't be a problem for you, but I rely on correct row numbering.

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