... 8 color:Red, Black, Gold, Silver, Blue, Plum, Green, PurpleAluminum alloy frame for the iPhone 4 is more appropriate for protecting Apple ... . Furthermore, the Aluminum alloy frame cover case is designed to help maintain the iPhone 4’s optimal signal strength.* CNC machined from a ... solid block of aircraft grade aluminum* CNC machined buttons for volume and power* Bumper has the SIM ...