Sub Standard
Normal - 100% Polyester
Sub Standard is an entry-level string for beginners and intermediate players who want to start with a low-cost bundle. The sub-standard strings are made from 100% polyester, with all three different types of Normal, Fat, and XL.
Compared to First Class, the raw materials used are a little more inexpensive. However, Kitty guarantees that even with the low-cost price, they still focused on the final quality of the product so that it doesn't feel cheap or is easy to wear out.
Normal
A favorite string of professional players all over the world. Good for all style of yoyoing. Recommended even for beginners. Traditional sized and perfect for thinner gapped yoyos, such as responsive or looping yoyos, or yoyos will smaller bearings that may experience snagging with thicker strings
Strings are between 120 and 125 cm in length, so they are a good choice for those who like longer strings. In anticipation of being cut to a specific length, these strings do not come knotted, so you must tie your own finger hole.