iPhoneXS MAX/11Pro iPhoneX/XS/11ProMax iPhoneXR/11 iPhone8/7/6s/6 Plus iPhone8/7/6s/6 iPhone5s/5c/5 iPhone4s/4
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URL https://static.wikia.nocookie.net/kpop/images/e/eb/F(x)_4_Walls_cover.png/revision/latest/scale-to-width-down/1200?cb=20200208192944 URL2 https://kpop.fandom.com/wiki/4_Walls
