Warning Flags: Hurricane, Gale. USA made heavyweight nylon, brass grommets. Set consists of 2 signal flags and 2 signal pennants. Gale storm signal flags are a solid red pennant. Hurricane signal flags consist of a black square centered on a square red flag. Size 1 is 18x18 inch flags and 18x36 inch pennants. Size 2 is 36x36 inch flags and 36x72 inch pennants.