Small (5/8") pitot tube cover fits: Cessna 300 & 400 Series, Citation, and Conquest, Beech singles and twins, Piper Navajo and Cheyenne, Mooneys, Mitsubishi, Lear Jets and Cirrus. These covers fit snugly over standard aircraft pitot tubes, and are vented to avoid pressurizing the pitot-static system. Keeps dirt, contamination, and insects from entering the pitot tube. "remove before flight" streamer hangs off the cover as a prominent preflight reminder to pilots. The cover is heavy-duty plastic material; the 5cm x 42.5cm red banner is bright red with white screen printing for maximum visibility.