Better your throwing technique and improve your aim with these stainless steel throwing knives from Summit Trail. This durable throwing knife set comes with a protective nylon sheath to keep them sharp when you're not using them. Summit Trail Throwing Knives 3 Piece Set Features: Throwing knives made from 420 stainless steel. Throwing knife set comes with protective nylon sheath. 16.5 cm overall length of each throwing knife in throwing knife set, 9 cm throwing knife blade length.