ADJUSTABLE LENGTH - This adjustable rope suspension system is superior to chains or polyester straps. Easily adjust to your desired length to fit your swings or hammocks. Chains offer limited length adjustments (typically around 3.5 inches). STRONG & SAFE - These swing ropes boast the same quality and strength as seatbelts. Each rope can hold up to 660 pounds. Industrial-grade steel buckles are virtually indestructible, ensuring safe and fun for the whole family. UNIVERSALLY COMPATIBLE - These swing ropes work with nearly any post or tree, indoors or outdoors. Perfect for swings, outdoor hammocks, aerial yoga, hanging rope chairs, garden swings, seesaws, disc swings, classic wooden swings, toddler swings, porch swings, indoor swings, and more. GOOD QUALITY - Made from commercial-grade polyethylene, our swing ropes withstand harsh winters and brutal summers without wear. The 3-braided design provides superior robustness and reliable fixing.