Since the other comments all say that this breadboard is terrible, I'll just say that it's actually great for me. The other comments are from at least 3 years ago, so the product could have changed in that time, but it's perfectly snug for me. Not too snug, not too loose. I'm not doing anything heavy duty with it, just wanted a small breadboard for RPi projects, but it's been great for me so far.

Not at all worth the hassle. The holes aren't "snug", it takes Thor-like strength to get anything in or out of the board (assuming that it doesn't destroy what you're trying to plug in, of course).

This board is awful. Way too stiff! Breaks wires, breaks your fingernails, bends your parts, takes 20 minutes to get a single part in sometimes. Go for the mini breadboards instead.

I wouldn't recommend this breadboard. It's super stiff so you'll end up bending all your wires when you try to shove them in. The metal contacts inside also aren't springy, so if you plug in larger wires or pin headers, it permanently loosens the hole.

I've used breadboards similar to the "Breadboard Mini Self-Adhesive" and have had a good experience, so that's probably a better choice. (Unfortunately it doesn't have power rails like this one though)

I bought two of these and they work great! Never had one problem!

Does this breadboard fit the Mega ProtoShield?

Breaks and Bends 22 gauge wires.
Pros:
Great for small projects
Small
Cheap
Cons:
Breaks Wires
To small for a making a Arduino unit
Other Thoughts:
I should of waited for the for the Basic Breadboard to come in stock.

anyone knows if this is a 2mm pitch breadboard?