ItÂ’s essential to displace first the wiper blades before opening the windows in Type 2 -07/67 buses that have the nice option of Safari windows. This support (one eyed duck) in combination of the wiper arm adaptors # 2471-20 -64 and # 2471-21 65-67 make it possible to position again the wipers with opened Safari window towards the center between the 2 front windows. The support and the sleeve are available separately.