Xperia z2 screen protector impact shield with self healour impact shield with self heal screen protector for the sony xperia z2 contains an advanced multi layer system a hard top layer spreads the impact over a wider surface area whilst a second layer bulletshieldtrade featuring basf polymer found in bullet proof glass absorbs and dissipates impact a final third soft layer dampens force and further absorbs impact protecting your screen with the most intelligent impact protection yet an