With the patterns of waves, ginji ni nami represents the waves that never die, the Japanese symbol for eternity and immortality. This pattern is also a symbol of auspicious birth. The Maki-e Ginji ni Nami iPhone case contains urushi. The design is completely handmade. This 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.