Load Capacity Up to 600 LBS - Each strap is made of military grade corrosion and weather resistant nylon and equipped with a stainless steel carabiner to support 600 pounds (2) and 6 feet length. Gain confidence knowing that the reinforced elastic ropes will always keep your kids safe from danger and injury. Design to Replace Broken Ropes from Swing or Hammock: Our strong ropes not only have to be the hanging tree straps, but also replaceable ropes of swings/broken hammocks/hanging chairs or extension cords. Short ropes with suspension system for the big tree or beam. Quick and easy way to extend any swing: perfect for roller swing, outdoor hammock, flying yoga aerial, hanging chair, garden swing, tire swing, strap balcony, classic tree swing and hanging swing seat for kids, etc. Strong & Safe: These elastic ropes have the same quality and strength as seat belts. Each can hold up to 660 pounds. While the industrial-strength steel makes the buckles nearly indestructible. Safe and fun