The object has the number "eight" in the center of the image. The number "eight" has a perfect circle surrounding the eight. It looks similar to the image on an eight-ball in the game of pool.
This Circled 8 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 5,700 icons, all in the same style and quality.