Every Austlift sling is proof tested, individually serial numbered, tagged and comes with a test certificate. Fabricated using 100% high tenacity polyester yarn and wound in a continuous hank to form an endless sling.Durable and specially woven, 100% polyester non-load bearing tubular sleeve to give maximum wear protection to the yarn hank. Conforms to Australian Standard AS 4497.1. Black color available upon request.