Display two columns in combobox

I have the following code that shows in combobox "cboCust" the information of ColumnB, how can I modify the code to show in combobox ColumnB and C?

Private Sub UserForm_Initialize()

'multiple columns combobox

    With cboCust
        .ColumnCount = 2
        .List = Range("tblClients").ListObject.ListColumns(2).DataBodyRange.Value
        .ColumnWidths = "70 pt;30 pt"
    End With

End Sub