Rugged construction a rubber bumper around the top cover absorbs the force of side bumps the corners are 50 percent stronger to reduce damage when dropped at an angle the bezel is thicker to protect the lcd panel and a stronger rear cover reduces accidental lcd damage the hinges and brackets have been strengthened to last 50 000 cycles and to withstand more force to the cover reinforced ports and a reduced gap between anchored keys help prevent accidental damage from a bored childs expl