Peakworks Restraint Lanyards PeakWorks retsraint lanyards are made using two types of material; a rugged heavy-duty polyester webbing or a premium polyester rope. Available in a variety of hook configurations. Restraint lanyards are designed to limit the distance a worker can move from the anchor point and towards the edge of the structure; should never be used when their is a risk of falling. . Pack of 1