This is a beautiful silver-plated copper red PCB professionally manufactured with the seal of Andromalus or Andromalius, the goetic spirit.
Mathers said: “The Seventy-second Spirit in Order is named Andromalius. He is an Earl, Great and Mighty, appearing in the Form of a Man holding a Great Serpent in his Hand. His Office is to bring back both a Thief, and the Goods which be stolen; and to discover all Wickedness, and Underhand Dealing; and to punish all Thieves and other Wicked People and also to discover Treasures that be Hid. He ruleth over 36 Legions of Spirits. His Seal is this, the which wear thou as aforesaid, etc.”
As a suggestion, I see these entities not as demons, but as almost sentient streams of consciousness, as they have had these desires pumped into them for thousands of years. Treat them with respect (just as you would an Angel or other servitor), and there is no need for fear or to apply the mindset that they are literally a demon in the Judaeo-Christian sense.
As suggestions for use, the item can be kept on your person, fashioned into jewelry, or used in any form of psionics or radionics broadcast. Of course simply burning a candle on or near the seal is effective, with a written, spoken, or thought intent.