Solderless Breadboard with 170 tie points. Adhesive backed, this board can take a DIP up to 34 pins or a nice little collection of electrizical goodies. Stick them wherever you need to add a part. There are also holes for screws or bolts. It looks like #4 or 2mm. We will check. These can interlock into larger breadboards as needed. See the photos below. Price is for a single SBB170 (Solderless Bread Board with 170 tie points).