This is a very small solderless breadboard with 170 tie points. It fits nicely on the Arduino Proto Shield Kit and the Arduino MegaShield Kit (use two of these for the MegaShield).
This breadboard has a strong self-adhesive backing.
Use this with Male-Male or Male-Female jumper wires.
Dimensions: 1.8" × 1.4" (45 × 35 × 8.5 mm)
This mini solderless breadboard is available also in red and in blue. The blue version has interlocking tabs/notches.