SpyderThrowers are painstakingly machined from thick 8Cr13MoV stainless steel, tempered to a tough spring hardness, and finished with a contrasting two-toned black oxide and satin finish. Their substantial heft and precise center balance allow them to be thrown equally well by the blade or the handle for half or full-spin throws. Although available in three different sizes, these remarkable knives all share the same common throwing characteristics and throwing distances.