The Case Peanut is a part of the Yellow Synthetic Family. Peanut knives get their name due to their small petite size fitting discretely and conveniently in a pocket. This durable folding knife two full length blades the Clip blade and the pen blade. The Clip blade is commonly used as a multi-purpose blade and preferred for detail work while the Pen blade is great for light work. Case Chrome Vanadium blades are known for their edge-holding ability and easy re-sharpening. However they are less resistant to rusting pitting and discoloration than stainless steel. We recommend keeping a thin film of oil on the blade to maintain the finish. Made in Bradford PA. USA from domestic and imported materials.