The CAPTIV positioning bar favors loading of the carabiner along its major axis, limits flipping and keeps it integrated with the device or lanyard. CAPTIV is compatible with Am'D carabiners and the ROLLCLIP pulley carabiner.
The STRING serves two functions: it holds the rope end carabiner in place on the rope end of a quickdraw and it protects a relatively large area of the sling against wear.