ONGUARD-K2W. LLC ONG-IP4S-9-BlackEDGE X-Series Bumper - 1 Pack - Screen Protector(Black) - Retail Packaging The inside of the Edge X Case is lined with a protective close-fit, high tech shock absorbingmaterial that reduces the G-forces of impactand shaking to protect thedevice effectively. K2W Edge X series iPhone4 Protective Bumper is created out of same high grade aluminum used in aerospace design making it ultra light, super strong and gorgeous! Edge X-seriesoffers beauty, function, uniqueness, superb workmanship, minimal bulk, market longevity and a lower price than competitor's similar products