Cylindrical Day Shape 24"Features:Material is Heavy-duty vinyl coated nylon fabric or nylon rope mesh.Stainless steel or galvanized framing.Fully collapsible when storedSimplicity of design offers rapid and rigid display when requiredAll day shapes are black in color.Day Signals or Day Shapes are used for communication. There are five types of day shapes: Circle, Diamond, Cone Apex Pointed Up, Cone Apex Pointed Down, and a Cylinder.General Day-Shape Configuration:1) At Anchor – Single round ball2) Aground – Three round balls in a vertical line.3) Making way with sails up and motor on – Inverted cone (only required for sailboats, 12 meters or larger).4) Dredging or making way with an obstruction on one side – Two green lights or two diamonds in a vertical line to indicate the side safe to pass. (Diamonds are a sailors best friend – Thus, safe to pass). Two red lights or two circles in a vertical line to indicate the side which has the obstruction.5) Vessel not under command – Two round balls in a straight line.6) Vessel restrained by draft – A cylinder.7) Vessel restricted in her maneuverability – Three shapes in a straight line. The top and the bottom are a ball and the middle is a diamond.8) Vessel engaged in fishing – Two cones in a vertical line with their apexes pointed at the center IMPA Number: 370582
