Certified Slings & Supply® knows what goes into creating a quality lifting sling. Since 1958, we have been manufacturing some of the toughest slings in the industry. Both our polyester and wire rope slings are made to match even the highest specifications. We offer a variety of sling styles, including web, eye & eye, roundslings, and more. When the job requires lifting heavy loads, be sure to use a sling that you can count on, time and time again.