Techelet Mordechai is made using the same type of cuttlefish dye used to make Radzin Techelet strings.
Complete set of 16 strings, three white and one blue for each corner. Made under the kashrut supervision of the Shatz Badatz of Ashdod, headed by HaRav David Moskowitz.
If you have never tied techelet tzitzit, you may want to tie them according to the Raavad, Amram Gaon, Sefer HaChinuch or the Vilna Gaon.
If you know how to tie Chabad tzitzit, you can tie according to the Arizal. The Rambam custom can be quite difficult at first, and is not recommended for the uninitiated.
For a comparison of cuttlefish dye vs. Murex dye, click here.