Missing 1 pin for electrical connection - The Global Specialties PB-105M Solderless Breadboard is a versatile and efficient tool for circuit prototyping. With 1050 tie-points and a rigid PCB design, it allows for easy construction and testing of electronic circuits. The stand-alone mounting style and compact dimensions make it suitable for various work environments. Operating at 6V and made of durable plastic, this breadboard from the PB series by Global Specialties is a reliable choice for electronic enthusiasts and professionals alike.