Case XX USA Beautiful Custom Blue Pearl Kirinite Engraved Trapper Knife. Beautiful Blue Pearl Kirinite handles with Engraved Nickel Silver Bolsters. 4 1/8″ closed. Fileworked Liners. Beautiful knife. Comes brand new in Case XX Black Felt Jewel box with Certificate of Authenticity from Wild Horse Custom Knives. #06 of only 25 made. Add a touch of class and uniqueness to your knife collection. This knife is sure to be the envy of your friends and the center piece of your Case knife collection! Absolutely beautiful knife!