By their web-page...
ADVANTAGE #1 –
Set the adjustable SK-2 shock level to LOW and the blade of the knife becomes your instructor. It uses a mild painless shock to provide feedback when your technique needs correction. Save time, energy, and money by training more efficiently.
ADVANTAGE #2 –
Stress Exposure Training
A real knife attack creates a feeling of panic causing your body to respond with the “fight or flight” syndrome. That same acute stress can now be replicated during training by setting the SK-2 shock level to EXTREME. At this level the knife sparks and growls, ready to bite with each attack.
ADVANTAGE #3 –
Cut Location Indicator
The SK-2 delivers a powerful shock upon contact allowing the trainee to recognize both WHERE and WHEN they were exposed during the attack. The shock will even arc through clothing! Unlike marking knives there is no messy marking compound to clean up after training.
ADVANTAGE #4 –
Stress Inoculation Tool
True Stress Inoculation Training involves an incremental exposure to a stressor. The SK-2’s four different shock level settings range from LOW to EXTREME, making it the only training tool in the world that can truly claim the ability to provide incremental stress training. The varied settings allow everyone that trains with the SK-2 to advance at their own pace.
ADVANTAGE #5 –
For the first time ever, the SK-2’s ability to create fear reponses will allow researchers the opportunity to simulate and study realistic edged weapon attacks. Are you or your instructors still teaching the 21 foot rule? Try replicating the study using the SK-2, the results will truly SHOCK you!
ADVANTAGE #6 –
Are you using the training knife that will best prepare your officers or soldiers to survive an edged weapon attack? The average settlement for failure to provide adequate training is $1.2 million dollars. The SK-2 is the only training knife in the world that can replicate the same mental and physical responses necessary for realistic training.
*Online Safety Monitor Certification is available for agencies conducting training with the SK-2.
Comparison Chart - see http://www.shocknife.com/advantage.html
Ergo it's a training tool..