Davis Wind Tels 1260, WindTrak 15” Wind Vane 3150 with Tacking Tabs Sailing Bundle (2 Items). The 1260 is Port and Starboard Colored Tales & mount on any shroud sizes up to 3/8". The 3150 WindTrak 15 Wind Vane offers sapphire jewel suspension bearing, a large fin low-inertia vane, & adjustable tacking tab system. This system picks up the slightest breeze and is easy to read both day and night because of the Wind Vane’s reflector tape located on the vane and tabs. WindTrak Vanes are sturdy and secure, having been wind-tunnel tested at 80 knots, and its 10 inch bird-proof spike keeps birds off the vane and mast.