pro-edge by liftex. premium edge for longest life. 1 twisted tire cord edge yarns provide superior cut & abrasion resistance – the resistance is structural and can’t wear off over time & use. 2 pvc pocket tag for maximum tag durability and legibility – all info is laser printed, including unique serial number on each unit. 3 superior cut & abrasion resistance, maximum tag durability and legibility – this combination means longer sling life, increased safety and lower cost per use.