With a completely different feeling from cotton and polyester strings, here comes the Nylon K-String.
K-String's main offerings are 100% polyester, but these strings are made from nylon (yes, the kind that windbreakers and stockings are made from).
The nylon has even more slip than polyester, and is even smoother for tough tricks that utilize layered mounts, causing less sleep loss. The nylon opens up beautifully for suicide catches and other slack-type tricks.
Fat string is a little thicker than Normal, giving it a more responsive feel, for tight binds (which means your next throw is going to have some intense spin on it!).
*Nylon is more susceptible than polyester to melting, so avoid using this string with yo-yos that use a starburst response system, or fixed axle models. Friction can lead to injury, kids!
*Kitty String Normal - has the same thickness of usual Slick 6 Type string. (11 Strands of thread)
*Kitty String Fat - thicker than Normal Kitty String (12 Strands of Polyester thread)
*Kitty String XL - Thicker than Fat Kitty String (13 strands of Polyester thread)
*Kitty String XXL- Thicker than the XL Kitty String (14 strands of Polyester thread)
*Kitty String Nylon - Type of Kitty String that uses Nylon material. Same thickness as Kitty String Normal. (11 Strands of thread)
*Kitty String Nylon Fat- Type of Kitty String that uses Nylon material. Same thickness as Kitty String Fat. (12 Strands of thread)
*Kitty String Nylon 1.5- Type of Kitty String that uses Nylon material. Collaborated with Irpad. Nylon Polyester mix. Thickness between Kitty String Normal and Kitty String Fat.
*Kitty String Tall- a type of Kitty String has 50-60 inch length.