This knife's original model is SAI. However, this model has the big difference in the two points. The most different things of the blade shape is made by "Tanto-Honzukuri". As you know, we make the "Tanto" blade for the CHI model. This blade shape is "Tanto-Shinogizukuri" which means straight grind. However, we were completed "Tanto-Honzukuri" with our original technologies.
A very few knife makers who can made this kind of blade shape. And we did "Tanto-Honzukuri" with the mirror polishing surface. The other point is the handle coating. This model was used the "DLC Prism" coating which is very thin of the thickness and very hard if you compare with the DLC.
The SAI-T-ZDP comes with a black leather belt pouch with a slot to hold the included torx-style wrench. Each knife is individually numbered and includes a certificate of authenticity.