We have 615209 free icons in 2050 sets
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check, checklist, list, list, itemize, mark, character, process, operation, success icon, accomplishment icon, success character icon page

Set: UI Actions Author: Isaac Campbell License: Creative Commons (Attribution 3.0 Unported) Total icons: 21
UI Actions: eye, eyeball, hide, obscure, view, look, visible icon, conspicuous icon, visible character