BT2 (totally my design), a replacement for the Atlantis ring, develops paranormal abilities, both forms refer to the shape of the Ajna chakra. There is a modeling canon, which I have called the Ana modeling canon, based on the traditional Hindu diagram of Ajna chakra. In Ana modeling canon a triangle shape (which is safe) should be used as the two side lobes of the Ajna chakra. Other shapes may be harmful. BT2 was invented by me in year 2024. It should be generally used as engraving on the metal plate. Laminated computer print or drawing on cardboard work well too. It can also be a wood engraving. If you would like to use a form on a ring, the meanders in the middle rectangles should be simpler. Generally a completely central rectangle - the connection should be without meanders (unlike on the photo - drawing below).
author of construction: Gregory Podgorniak, Poland
photo. BT2