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> Line Arrows

Cave divers use line arrows, also known as 'dorf markers' to indicate the direction of the closest exit. They provide both a tactile and visual reference. Line arrows are available in white or glow-in-the-dark and are 2 3/8-inches long.

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Line Cookie (Non-Directional Marker)

Sometimes a directional marker (line arrow) is not the proper marker to leave -- Non-directional cookies mark a specific place on the line, but do not give directional information. Cookies are available in white only and 2-inches in diameter. They are preferred over line arrows for setting up traverses or circuits because they avoid the possibility of having directional markers on the line which could point away from the closest exit, which could be disastrous in an emergency. They are a must at jumps, especially jumps made from points at which no permanent marker has been installed. Placed on the outbound side of the jump, they confirm exit direction as divers return to the jump.