Amulet made from shells of Hirondellea gigas. Contains a resin-embedded shell of Hirondellea gigas. Hirondellea gigas, which live in the deepest part of the world, swim around vigorously even under the highest pressure in the world. Give you the power to withstand the pressure of Hirondellea gigas! It will surely support your heart.
 Hirondellea gigas uses the real thing collected in the trenches near Japan (Izu-Ogasawara Trench, Japan Trench).