400 Point Half-Size Solderless Breadboard - 

The DF Robot FIT0096 is a 400 point, half-size interlocking solderless breadboard, ideally suited for small projects. The board is sized at 82x62mm, with a standard double-strip in the middle and two power rails on both sides. You can detach the power rails easily to make the breadboard as thin as 35mm and attach it to an Arduino protoshield. You can even cut the board in half with a saw to create 2 tiny breadboards, or "snap" these breadboards together either way to make longer or wider breadboards.