Crane is considered to bring good fortune in Japan. Because it is believed that they can live long (around more than thousand years) and their sound can carry far way even to the heaven. As a result, Japanese people invented the art of folding paper into figures of Crane, which always contain a wish for good luck,longevity and happiness. This design combines gorgeous technique of Raden and the good meaning of Crane.The Maki-e Tsuru to Raden iPhone case contains seashell, gold and urushi. The design is completely handmadeThis product is made with Urushi, which contains urushiol, a substance that may cause allergic skin rash on contact (specially on liquid form) We carefully look into delivering complete dry products to reduce any allergic threat. Consult your health advisor for more details.