Set of four! Classic ninja designs are applied to this set of cards. These are no ordinary cards, they are made of stainless steel and sharpened on the edges. Testing these have shown that they slice through a target incredibly well. The sharpness of the edges seem to cut right through the surface of whatever it is thrown at. It would not be a surprise if these slice right into the body of a steel car door (not recommended). Please handle safely. This 4 Piece set of Ninja Shinobi Steel Throwing Cards comes with a FREE Nylon pouch. Right now, take advantage of this offer.