Impact Gel Black Transformer Shock Resistant Galaxy S4 Case Compatible for Galaxy S4 2mm of eco-friendly Impact Gel provides your phone with XTREME ARMOUR protection against accidental drops and falls. Ultra slim design for comfort in hand and an easy fit into your pocket Interchangeable design inserts offer different looks or personalize with your own design or photo. Access to all buttons and features on the phone, including flash opening for ideal picture taking