Aluminum training knives are excellent not only for training but even realistic sparring. The knives themselves have the same weight as live blades and so you'll have the experience with the weight and balance of a live blade with the safe training practice of a blade that won't cut you as you learn.
We're pleased to offer you this small training knife. We're offering it because its size and length mimic what you will experience with a folding knife. or many kinds of "utility knives." Folding knives are not as long as most fixed-blade knives and are more frequently carried by all sorts of people.
As you compare the ink pen to the length of the knife, in general, and the blade, in particular, you'll note the small size and profile of this training tool. It's small, easy to use in training, and will prepare you to handle a small knife in non-training environments.