It's a logo of a shekel which is a unit of weight. The icon has a round circle around the icon. The inside of the logo has two matching symbols. The symbols are straight lines with hooks at the end. They are balancing out each other.
This is a Shekel 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.