Importer520 Cup Shape 3-Piece Clip-on Hard Cover Case Compatible with iPhone&reg; 3 G 3GS (Blue / Black) Brand New Non-OEM (Generic) Polybag Package Hard plastic reinforces the edges, sides and back of the iphone 3g to prolong the life of this case and your phone. Prevents damage to your phone from objects in your pockets or purse. Easy installation, just dress on your phone without any tools. Perfect fit, designed to fit your phone perfectly.