Tracer orbs, which Ygabba Hise and the other children controlled by Gilramos Libkath called Eyes of the Master, were tracking devices that Gilramos Libkath engineered. Functioning as tiny cameras, these orbs transmitted comprehensive visual data directly to Libkath. He implanted these devices in his slaves to prevent them from fleeing. Should they attempt to escape, the orbs would inject a lethal toxin into their blood stream, resulting in their death. Medical droids performed the implantation of these orbs. The sole method to disable these orbs involved guaranteeing the demise of Gilramos Libkath.