Case Cutlery 9220RB Case Rainbow Corel on Peanut Pocket Knife with Tru-Sharp Stainless Steel Blades Green, Pink, Yellow White Mixed Corel on. The No. 9220RB Case Peanut features Smooth Corel on Rainbow Colored handles, rust-resistant Tru-Sharp surgical steel Clip and Pen Blade knife. The Peanut is small enough to carry comfortably in your jeans pocket, but ample enough to get the job done. This traditional style has long been a favorite with Case enthusiasts. It is the perfect "one knife fits all" solution when looking for that special gift. Corel on is a durable synthetic handle material which is similar in style to the old celluloid handles, but more stable. Due to the way the Corel on handles are poured, each knife is uniquely different in the way the colors appear. Specifications Pattern: 9220 SS Handle Material: Rainbow Corel on Blade(s): Clip and Pen Blades Blade Material: Stainless steel Length Closed: 2. 875" Blade Grind: Concave Weight: 1. 2 oz. About W. R. Case & Sons Cutlery Co. W. R. Case & Sons Cutlery Company has been a leading American manufacturer of premium, hand-crafted knives for more than a century. Still manufactured in Bradford, Pennsylvania by skilled artisans using the finest materials and time-honored techniques – this rich heritage makes Case knives the brand of choice for sportsmen and knife enthusiasts, as well as the most collected knives in the world. From hunting and pocket knives to the V-42 Stiletto carried by U. S. Army soldiers in World War II, to the M-1 Astronauts knife carried on the Gemini and Apollo missions, Case knives have been a trusted companion, as well as a tool, for generations.