This Checked Checkbox icon is made in Material Design style developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,100 icons, all in the same style and quality.
Idea of Checked Checkbox Icon by Tim
We've received the idea on June 1, 2012 and created the icons on June 12, 2012