system-uicons/src/images/icons/ruler.svg

<svg height="21" viewBox="0 0 21 21" width="21" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" transform="translate(2 8)"><path d="m1.5.5h14c.5522847 0 1 .44771525 1 1v4c0 .55228475-.4477153 1-1 1h-14c-.55228475 0-1-.44771525-1-1v-4c0-.55228475.44771525-1 1-1z"/><path d="m3.5 1v2.5"/><path d="m5.5 1v2.5"/><path d="m7.5 1v3.5"/><path d="m9.5 1v2.5"/><path d="m11.5 1v2.5"/><path d="m13.5 1v3.5"/></g></svg>