The area where the string attaches to the yoyo is softer to make it easier to put the string on and also to make play smoother. The rest of the string features a normal tension for designed for contest level string tricks.YoYoTricks.com Kitty String First Class Review
Kitty String First Class is a contest ready string made in Japan and has been a popular request from our users since it came out. First Class string is the first string to feature two tensions in the string, one where the string attaches to the yoyo and the rest of the string.
Fat is the Thicker version of Normal at the same time heavy String among Kitty String. This has 12 strands of thread but still make a good whip and slack. Most slacker like this Type of String. They could feel more the Strings moving around for what they want. Many yoyo players uses this also for wide gad yoyo which giving it a more responsive feel, for tight binds (which means your next throw is going to have some intense spin on it). XL is the Thickest among all Kitty String. XL gives more tighter bind and faster whip. This was designed for people who still feels that Fat type are bit thin for their play so we upgraded the thickness up to 13 Strands to make it more thicker and heavier for all types of division. Usually XL are used by Single A division (1A) They 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.Manufacturer's Description of The Kitty String First Class
Normal is the first ever Kitty String that invented.
Favorite string of professional players all over the world, the KittyString 100% polyester. Good for all style of yoyoing. Most recommended even to the beginners.