Look! It's a 17x10 Mini Breadboard! Works great for prototyping, and not-so-great for cutting bread.
This 10 x 17 solderless breadboard is featured on the Board of Education carrier board and Homework Board; makes prototyping easy!
These are really handy for those small one-off circuit projects that you want to move around from one project to the next. We use them here like we eat popcorn (except these don't taste good with butter...)