Put the iPad in the middle of the two plastic cases and then the rubber piece fits on last.

No, it will not protect the ipad from water, just clumsy people and children. - And now a rant: Why did PPSHA the seller say such an absurd remark above. This is partly why I can't stand buying products from Chinese sellers. They might as well be quiet unless they are fluent in English. Chinese products are often crap too, then's there's multiple issues and moral problems I have with China and the CCP.