Materials: No stretch Polyster, each rope can support up to 617 pounds(280kg).
Tree Frendily: Each rope has a 17"(44cm) long 2"(5cm) wide tree protector webbing.
Available in 3 length(Sing rope length): 8.2ft(2.5m), 10ft(3m) and 11.5ft(3.5m).
Comes with 5 knots pre-tied on each rope while you can add more based on your needs.