It's a picture of a lipstick. The lipstick is without the top cap and the lipstick is sticking out a bit and used in an angle where the left side is worn down more and in an angle going to the right.
This Lipstick 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 6,000 icons, all in the same style and quality.