Line Arrow

As low as $0.50
In Stock
SKU
DX-LINMKR
Our generic polystyrene line arrows are available in four colors (five if you count black) and approximately (2.6 in | 6.6 cm} long by {1.6 in | 4.1 cm} wide at base

Line Arrow

Line Arrow Color Options
Line Arrow Color Options Dimensions are Approximate Size Comparison
  • Approximately (2.6 in | 6.6 cm} long by {1.6 in | 4.1 cm} wide at base
  • Approximately {0.10 in | 2.5 mm} thick
  • Available in White, Yellow, Orange, Glow-In-The-Dark and Black
  • If you order Black arrows, please tell us why

Line Arrows are isosceles triangle shaped directional markers providing both a tactile and visual reference to indicate the path to the closest exit.

Dry cavers were using directional markers long before there were any cave divers. The early cave divers in Florida saw the benefit of these markers, and Lewis Holzendorf came up with the idea of folding a triangle of tape around the line to form an arrow. These tape arrows were called "Dorf" markers, in Lewis' honor. There were a couple of problems with tape arrows, however -- they slid along the line and were difficult to feel in a silt-out. Cave diving pioneer, Sheck Exley asked fellow diver, Forrest Wilson to lead a discussion group at a NSS workshop, to come up with an idea for a better arrow. Several ideas were tossed around and eventually, Forrest came up with the current design. They soon became very popular and Steve Hudson of PMI cave rope company asked Forrest's permission to mass produce the arrows for Dive Rite.

More Information
Brand DGX
SKU DX-LINMKR
Weight 0.010000

Stealth Line Arrows

We are occasionally asked, "WTF black line arrows, are those real or an April fools joke?" Once-upon-a-time (so we were told) when the injection mold was built for the line arrow shape, the initial manufacturing test run was made using stock polystyrene that was black color... so yeah, sadly they are real. Eventually, we were talked in to taking some with our logo silkscreened to serve as sort of business card promotional handouts at dive shows. Apparently, the supplier gleefully shipped us everything they had. Stealth line arrows are a physical oxymoron - serving no useful purpose in diving that we can see (get it?), but we still have some Black color blank versions taking up space in the warehouse.

The stealth line arrow is a limited edition collectors item... some day they could be very rare and valuable... or not.