RadToolBar provides support for RTL languages.
    
        RadToolBar considers the direction attribute set to the control itself or any parent
        HTML element. If you set the direction of the body tag (or any other parent element
        that contains the control) to rtl, RadToolBar reverses the item
        order and aligns itself to the right side of the container.
    
    
<telerik:RadToolBar ID="RadToolBar1" runat="server" dir="rtl" ... />