ITEM NAME:Aluminum Alloy Auto Locking Caribiners for Paragliding and Powered Paragliding, Description: Made of aluminum alloy material The maximum longitudinal tension 20KN Specially designed for paragliding and.Specially designed for paragliding and powered paragliding. Made of aluminum alloy material. Material: Aluminum Alloy. Perfect for tandem pilots the world, as well as solo pilots intent on using the very best.