[4:3] 1600x1200 [4:3]
4chan wallpaper 1600x1200, 4:3 4chan wallpaper 1600x1200, 4:3

[4:3] 2560x1920 [4:3]
4chan wallpaper 2560x1920, 4:3

[16:9] 4000x2250 [16:9]
4chan wallpaper 4000x2250, 16:9