Black Grenade Cord Lock. Perfect for backpacks, necklaces, lanyards, shoelaces or to add creativity to any paracord project. Squeezed together, tension is released and the cord lock can move up and down the paracord. When released, the tension is engaged and the cord lock stays in place. Grenade Cord Locks are comprised of 3 parts - body, spring and plunger.
Also works with 1/8" and 3/16" shock cord, the opening is 6.0mm or 1/4".