PNG ICO ICNS SVG MORE
Social media
Glyph
Twitter UI - Flat
remove, cancel, Block
Black
512x512
Signs & symbols
navigation icons
Block
PNG ICO MORE
Buttons
delete, Block, Clear
Firebrick
Block, L, delete
Block, protect, shield
OliveDrab
Block, ban, Adware
remove, Trash, delete
Computer & hardware
Database Management
network, Server, Block
DimGray
UI
Basic interface
user, delete, reject
cansel, user, Block
iOS7 optimized
Miu
Block, Keypad, editor
layout, Grid, stroke
view, Grid, layout
Mixed
Material Core
PNG SVG MORE
view, headline, Block
Google Material Design icons
PNG ICO ICNS MORE
Business & finance
48x48 Free Time Icons
Abort, exclamation, Up
Tomato
48x48
warning, Alert, Hand
Red
PNG MORE
24x24 Free Application Icons
stop, Abort, Block
24x24
Error, sign, Blocked
IcoMoon
32x32