メトリックと皇帝のユニットの選択とドラッグ可能な定規を使用して簡単に
Easy to Use Ruler is ruler with 2 draggable indicators and draggable ruler with wooden background as old school ruler.
3 Themes
Wooden
Metallic
Black
Option for margin on both sides.
Option for draggable ruler
Option for measurement unit system(Metric/Imperial)