The Dell team shows the design value of our Ballistic Armor solution on our E6420 XFR rugged notebook. Utilizing the PR-72 ultra polymer materials on high impact areas of the E6420 XFR notebook, the tests show that this material in more impact resistance than standard magnesium alloy. This thought leadership in materials design shows why the XFR is one of the most durable notebooks in the industry and why Dell is taking the lead in rugged solutions.