100% brand new and high quality Prototype Size:7cm x 5.5cm x 2cm Mini breadboard size: 4.4 x3.4 x1cm Quantity:1pc The breadboard sticks on the prototype shield with its self-adhesive backing Small soldering area The mini breadboard has 170 tie points SOIC place for IC 1 reset button, 1 general use button, and 2 LED circuits can be used directly