SainSmart Prototyping Prototype Shield + Mini Breadboard + Free Jumper Cable for Arduino UNO Mega Nano DUE Robot SainSmart Prototype Shield: Access to a BlueSMiRF socket for wireless communication between Arduinos 2 general LEDs;1 general pushbutton switch;1 Arduino reset switch brought to top level 5V, GND, and Raw pins are exposed as well Breadboard Jump Wires: Self-adhesive backing to stick on the Arduino Protoytpe Shield 170 tie points.