New for 2017! The Kershaw Black Scallion 1620SWBLK is now Available. The Scallion is one of the most popular Kershaw knives and the Rainbow Scallion is one of the most spectacular. The coating is created by a process in which metals are ionized and then it is permanently deposited as a microns-thin metal coating on the blades. The coating is durable and scratch resistant?and looks amazing.