Griffin GB02480 Survivor Extreme-Duty Military Case for iPad 2 (Black) This durable case is designed to protect your iPad 2 from dirt, sand, rain and shock. The frame is constructed with polycarbonate material that is shatter-resistant and clad in shock-absorbing silicone. Independently tested and certified to meet conditions outlined in US Department of Defense MIL-STD-810 Integral Display shield deflects wind and rain (Test: up to 200 mm/hr for 1 hour) Rigid internal frame protects against shocks and drops (Test: drop on flat concrete surface from 6'/1.8 m) Sealed ports block blown sand and dust (Test: up to 18 m/sec for 1 hour) Silicone cladding blocks vibration (Test: 18 hrs at 20 to 2000 Hz) Includes multi-position workstand