Case XX USA Amazing Custom BUBBA GUM Bone Engraved Copperhead Pocket Knife. Beautiful Bubba Gum bone handles with Engraved Nickel Silver Bolsters, Fileworked Liners, and worked backsprings. 3 7/8″ closed. Scrolled Stainless steel blades. Beautiful knife! #10 of only 20. Individually serialized. Comes brand new in Case XX Jewel Box with Certificate of Authenticity from Wild Horse Custom Knives.