ADJUSTABLE LENGTH - This adjustable hanging rope system is more excellent than others like chain or polyester webbing. You can adjust the size you want to fit your swings or hammocks, but the daisy chain is just to be adjusted with a limited length range (always for 3.5 inches). STRONG & SAFE - These swing ropes have the same quality and strength as seat belts. Each can hold up to 660lbs. While industrial strength steel makes the buckles nearly indestructible. Safe and fun for the whole family. UNIVERSAL COMPATIBLE - These swing ropes work with almost any pole or tree, regardless of indoors or outdoors, such as a swing, outdoor hammock, flying yoga aerial, hanging rope chair, garden swing, seesaw, disc swing, classic tree swing, toddler swing and porch yard swing, indoor swing, etc. GOOD QUALITY - Made of commercial grade polyethylene, our swing ropes withstand harsh winters and brutal summers without abrasion. 3 braided design provide better sturdy and reliable fixation.