Grindworx Convex Bead with Lanyard The Grindworx lanyard features a hand-forged damascus convex shaped bead matched with a hand-tied grey stripe cord lanyard (6" overall). The bead measures 15/32" (width) x 1/2" (height) with a 1/4" diameter hole. The lanyard is tied with two diamond knots and three snake knots in between. This Grindworx lanyard adds an understated sophistication to your knife or gear. Due to the nature of damascus, each bead will be unique.