This is a picture of a bunch of circles going around in a circular shape. the circle at the top is the largest, and they get smaller as they go around counter-clockwise.
This is a Wait icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,700 icons, all in the same style and quality.