CaseCrown Glider Diag Case for Apple iPhone 4/4G - Black - Fits AT&T iPhone Compatible with AT&T, Sprint and Verizon iPhone 4 and 4S Made from durable polycarbonate with felt lined interior. Does not impede reception when holding or installed. Two-piece system ensures easy and secure installation. Access all of your Apple iPhone 4 and 4S features such as cameras, screen, charging port, and volume control.