Incipio DualPro Shine Case for Samsung Galaxy GS4 Mini (USA) - Retail Packaging - Black/Black Inner shock absorbing silicone layer with a rigid Plextonium shell overlay Radio transparent materials do not hinder available signal strength Brushed aluminum finish for a sleek and distinguished look and feel Inner Shock Absorbing Silicone Layer With A Rigid Plextonium Shell Overlay ^Radio Transparent Materials Do Not Hinder Available Signal Strength ^Brushed Aluminum Finish For A Sleek And Distinguished Look And Feel