LA SIESTA Tree Rope Black - Tree and Pole Suspension for Hammock Chairs and Hanging Nests Hook: fiberglass reinforced polyamide; rope: heat set polyester Rope length easily adjustable with the Smart Hook Maximum carrying weight is 73 lbs. Fixing system which revolutionizes the suspension of hammocks; Rope length easily adjustable with the Smart Hook Products tested and certified by the German TUV Rheinland