Product information "EK Archery Cobra R-Series Crossbow Stringer"
Replacing the string on your EK Archery Cobra R-Series crossbow is a piece of cake with the help of this crossbow stringer. This stringer is actually a somewhat longer crossbow string with large loops at the end. You first mount the stringer and then cock the bow as you normally would when you want to shoot. Now the bow is under tension and you have enough room to install the original string. You can then relax the bow and remove the crossbow stringer.