Griffin Survivor Extreme-Duty Military Duty Rugged Case and Belt Clip for iPhone 4 - Black (Bulk pacakged) Tested and certified to meet or exceed US Department of Defense Standard 810F and UK Department of Defense Standard 00-35. This durable case has an outer layer of silicone with a hard front and back snap-on shell. The removable belt clip kickstand does double duty by providing hands free viewing of images and video. This rugged cased protects your iPhone 4 from dirt, sand, rain, or shock.