The icon is shaped like a full circle. At the center of the circle is a arrow. The arrow is aiming downwards so the tail of it is facing the top of the circle and the arrow is facing the bottom of it.
This Scroll Down 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.