PNG SVG MORE
Signs & symbols
Glyph
Miscellany Web icons
approve, Check, list
Black
448x512
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Business & finance
Free Misc Icon Set 1
good, Check, ok
512x512
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UI
Elysium Icons
mark, approve, Check
DimGray
24x24
Mixed
FatiCons
approve
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Windows 8 metro style
DarkSlateGray
IcoMoon
approve, Alarm
32x32