Case Trapper features Smooth Corelon Butter Rum handles, rust-resistant Tru-Sharp surgical steel Clip and Spey blades. First offered in the 1920’s, the Trapper today is one of the longest running knives in the Case line. Whether cleaning game or performing detailed cutting on the workbench, the Trapper is tough enough to get the job done. Corelon is a durable synthetic handle material which is similar in style to the old celluloid handles, but more stable. Due to the way the Corelon handles are poured, each knife is uniquely different in the way the colors appear.