Check the water-tightness before use. / Do not swim while using this product. / Do not put anything other than a smartphone inside.Do not leave the product pressed against other objects for extended periods of time. Plasticizer may cause deterioration or color transfer.Do not use or store in a place subject to direct sunlight or high temperature.Immediately discontinue use if the product becomes deformed or damaged.Keep away from fire and other sources of heat.Do not use this product for purposes other than its intended purposes.