MK Ultra Precision Throwing Knives - Full Tang 440C Stainless Steel Set of 3 Impervious and MK Ultra Unbreakable! Set of Three! Overall Lengths: 10.5 Inches, 8.5 Inches, 6.5 Inches. Material: 440C Stainless Steel. Free Nylon Sheath with three pockets and a belt loop. Double-Edged Throwing Knives. Perfect Precision.