The Case TrapperLock Knife has a locking clip blade with a thumb stud for one hand opening, and a liner lock handle that is 4 1/8" long. Some TrapperLock Knives have a pocket clip. Many Case TrapperLock Knives have stainless steel blades; TrapperLock Knives with carbon steel blades are denoted as Chrome Vanadium steel. Each Case TrapperLock Knife is proudly made in the USA.