LA SIESTA Tree Rope Black - Tree and Pole Suspension for Hammocks Hook: fiberglass reinforced polyamide; rope: heat set polyester German TUV Rheinland tested and certified weatherproof and UV-resistant, Suitable for permanent outdoor use Maximum carrying weight is 91 lbs. Fixing system which revolutionizes the suspension of hammocks; Rope length easily adjustable with the Smart Hook Weatherproof and UV-resistant, suitable for permanent outdoor use