The new Prostat Qube replaces expensive electrical ground circuit testers and indicators with a convenient, cost effective means to connect vital ESD controls to grounded electrical outlets. Use the Qube Grounding Plug to ground workstations, mats, wrist strap testers, instruments, and other ESD products to an approved pre-tested facility electrical ground. It consists of a heavy duty dual banana receptacle frame encased in fire retardant ABS with a solid brass grounding pin.