Materials used in the making of a mobile phone include glass, ceramic, metal, plastic and rubber. Each mobile phone begins as a conceptual drawing. Once the design has been given the green light and goes into production, the plastic components are made by using an injection molding machine. The two halves of a phone are then molded together, leaving room for the internal parts to be placed inside. The electronics are inserted, the outside glass and metal are installed, and the phone is ready to be shipped.