LG’s Phone first(phone-based communications) GSM phone features a folder type, inspired by a special metallic paint, which makes an effect possible as it seems like water. By applying concave patterns of golf balls to the keypad, and micro-patterns of the golf balls to the rear grip, the tactile of being pressed and the feeling of holding were trying to integrate. In the early stages curbed bar type format was developed followed by face line but struggled with the difficulty of actualization in engineering, the curved format has been changed into flat format