Enchanted Jewelry Sigils of The Craft Heptagram Charm for Protection from Hidden Dangers Charm Amulet Talisman Seven - a sacred and mystical number - relates to the seven seas, seven continents, seven original planets and the blessed seventh child of a seventh child. The seven star rays contact the Cosmos. For Protection from Hidden Danger. Approximate size: 1" x 1". Produced in sterling silver, comes with a black cord necklace, and is presented in a hallmarked jewelry box.