microtivity IB402 400-point Breadboard for Arduino w/ Jumper Wires & USB Adapter 400-Tie-point mini breadboard (white) with peelable adhesive tape at the back Comes with 20 male-male jumper wires of various colors A-B male-male USB adapter included for programming your Arduino. Also great for electronic and electrical experiments Dimensions: 84 x 55mm (3.31" x 2.15")