6/3 Swedish Rope Tarred Hemp Marline Cord, 2.5mm, 500 grams. Extra fine tarred hemp cord made from hemp yarn of the highest quality and treated with genuine valley-burnt wood tar. Double-twisted cord. The treatment with tar gives a good fragrance and increases the string's resistance to UV light and moisture. The tarred cords have a better durability in an outdoor environment compared to untreated hemp.