How do I set a max width for ContextMenuStrip items, so autosizes downwards rather than across?

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VB

Visual-Studio

forms

VS2012

How do I set a max width for ContextMenuStrip items, so autosizes downwards rather than across?

Code:
    Private Sub ListBox1_Click(sender As Object, e As EventArgs) Handles ListBox1.Click
        ItemNameToolStripMenuItem.Text = ListBox1.SelectedItem
    End Sub

Basically what I'm trying to achieve is this (in the context of when an item is clicked in listbox the below layout is shown via right click by toolstripitem):

Currently

Today is TuesdayToday is TuesdayToday is TuesdayToday is TuesdayToday is Tuesday



I want

Today is Tuesday
Today is Tuesday
Today is Tuesday
Today is Tuesday
Today is Tuesday