The illustrated Case Knife is the Mother of Pearl (81749LSS) Case Mini CopperLock Knife that features a locking clip blade made of Tru-Sharp surgical steel with a nail nick for opening. The genuine Mother of Pearl handle of this Case knife, 3 5/8 closed, has nickel silver pins, nickel silver bolsters and a lockback. The cap end bolster of this Case knife has CASE XX embossment. The Case Mini CopperLock Knife with genuine Mother of Pearl handle weighs 2.0 ounces.