Proper installation is extremely important to successful use. So please review and check the user manual to ensure correct installation to make the case fully sealed.
![iPhone 7 Waterproof Case, [New Version] Underwater Waterproof Shockproof Dirtproof Full Sealed Case Cover for iPhone 7 (Black)](https://m.media-amazon.com/images/I/41jfvJP7arL._SL500_.jpg "iPhone 7 Waterproof Case, [New Version] Underwater Waterproof Shockproof Dirtproof Full Sealed Case Cover for iPhone 7 (Black)")
Proper installation is extremely important to successful use. So please review and check the user manual to ensure correct installation to make the case fully sealed.
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