Heavy Duty Strap For Tree Swings- Single 48 Inch Polyester Strap With Carabiner- Green DURABLE HEAVY DUTY STRAP IS SAFE FOR YOUR FAMILY. This waterproof strap holds up to 500 pounds. Made of 100% polyester, just like sturdy seat belt material. ECO-FRIENDLY. Strap wraps around trees and does not cause any damage. Green color blends into natural settings. VERSATILE. Perfect for any outdoor swing, including tire swings, baby swings, hammock chairs, or even hammocks. EASY ASSEMBLY. Tree swing kit takes seconds to install and requires no tools. Directions are provided on packaging. SATISFACTION GUARANTEED or your money back.