The ShowDir property specifies whether the arrow of the link is shown or hidden. The LinksShowDir property specifies whether the direction for all links are shown or hidden. The ArrowColor property specifies the color to show the direction of the particular link. The Width property specifies the size of the link and so the size of the arrow. The Visible property indicates whether the link is visible or hidden. The StartPos/EndPos properties indicates where on the starting element links starts and where on the ending elements the link ends.