RPi Proto Breadboard PCB Kit for Raspberry Pi 3 / Zero 1.3 / 2 / B+ / A+ (with 40p Box Header) Includes 40 pin box header for Raspberry Pi 3B/Zero1.3/2B/B+/A+ Five and Six hole pad combination design to further improve usability Gold plated finish prevents oxidation, High quality RoHS ENIG finish for easy soldering All holes are through-plated for strength 1.2 mm diameter drill holes will fit even the biggest leads