The Triple Density Technology does not degrade and presents protection from harsh chemicals and oils. The seamless design means that no water, or other liquids, can get in. Google didnt know what to take action what i did was unhide the address (SAB) knowingly that it might suspend, then google https://bbs.pku.edu.cn/v2/jump-to.php?url=https://en.wikipedia.org/wiki/Comfort