How to make a wx Toolbar buttons larger?

toolbar.SetToolBitmapSize((24, 24))

wx.ArtProvider.GetBitmap(wx.ART_FILE_SAVE, wx.ART_TOOLBAR, (24, 24))

# Define the size of the icons and buttons
iconSize = (24, 24)

# Set the size of the buttons
toolbar.SetToolBitmapSize(iconSize)

# Add some button
saveIcon = wx.ArtProvider.GetBitmap(wx.ART_FILE_SAVE, wx.ART_TOOLBAR, iconSize)
toolBar.AddSimpleTool(1, saveIcon, "Save", "Save current file")