Wiper Shaft adaptor blocks for Safari windscreens. Disengages wiper arms to allow them to park under the screen when Safari windscreen open. Adaptor height 21.5mm for use with wiper shaft bases measuring 65mm in length. EACH (Not aesthetically correct for 1964 and earlier Buses, but functions perfectly), fits 1964 and earlier Buses, also fits 1965-1967 Buses if using currently produced German wiper arms 211-955-407/A