PNG ICO ICNS MORE
Boolean
Add, square
MidnightBlue
16x16
Gloss: Basic
hard drive, hard disk, Hdd
32x32
Crystal Project
plus, profile, user
group, plus, Add
PNG MORE
Alerts
plus, statistics, Stats
128x128
The Spherical
Add, plus
iVista 2
plus, Add
256x256
Sports & awards
Pixel
32px Rounded
Add
Mixed
3D
Momentum Glossy icons
Add, globe
Signs & symbols
Smooth
32px Rounded icons
UI
Gloss Basic Icons
Add, Addressbook
square, Add
Gloss set: Basic
Addressbook, Add
The Spherical icon set