{"product_id":"dive-rite-line-arrows","title":"Line Arrows","description":"\u003cp\u003e\u003cbr\u003e \u003cbr\u003e\u003cspan style=\"font-family: arial,helvetica,sans-serif;\"\u003e 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.\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e\u003cspan style=\"font-family: arial,helvetica,sans-serif;\"\u003e 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, and hand made several hundred. Forrest’s  arrows were sold through the Branford Dive Center in North Florida. They  soon became very popular and Steve Hudson of PMI cave rope company  asked Forrest's permission to mass produce arrows for Dive Rite.\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e\u003cspan style=\"font-family: arial,helvetica,sans-serif;\"\u003e Today, cave and wreck penetration divers from all around the world use  line arrows to mark the direction of the closest exit. Available in  White.\u003c\/span\u003e\u003c\/p\u003e","brand":"Dive Rite","offers":[{"title":"Default Title","offer_id":50992029761842,"sku":"DR-AC2015","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/7687\/1474\/files\/dr-ac2015_1.jpg?v=1773896700","url":"https:\/\/store.caveadventurers.com\/products\/dive-rite-line-arrows","provider":"Cave Adventurers","version":"1.0","type":"link"}