Product Features. Innovative use of leather and PC bump flip pan mix design， new tactile experience， thin and light design， easy to carry and use. Outer layer made of imported premium leather， soft and delicate texture of high-grade; super fiber lining， soft and breathable， perfect care screen. Bottom lines characteristic bumps， dust-free matte UV fuel injection， feel full， hole location precision， easy to operate. Window design， can be achieved without having to flip Visual Caller ID， easy to operate; flip convergence at the use of hand processing， smooth and beautiful， solid and durable