Protoboard Shield for Arduino Protoboard Shield for Arduino with just a bunch of soldering pads Works with Arduino R3 Seeeduino Freeduino Arduino R2 and older boards Includes a SOIC8 SMD pad 300+ soldering PADS separated at a standard 2.54mm (0.1") spacing Only the PCB is included. You will need 2.54mm male or stackable headers to plug the shield to the Arduino board