The Step is designed using the signature Next Generation Polymer material. The NGP material is dual injected and combined with a hard polycarbonate outer shell. Step is visually appealing yet very protective. * Product Material: PTU * Product Weight: 0.25 lbs. * Modern design with simple and effective panels help keep the iPhone 4 protected at all times * Step shaped exterior panels are both visually appealing and add extra protection * Cutouts give easy access to controls, touch screen, and inputs * Compatible with both AT&T and Verizon versions of the iPhone 4 * Fit tested and compatibly with the White iPhone 4