If you’re talking about price alone, it’s made in the Phillipines which is about the same as my country (Indonesia) economy wise. It’s actually possible because the raw material is really cheap. For most yoyoers here, Kitty strings are more expensive than local made strings. My strings retails for like $5 for 50, and it’s already one of the most expensive compared to the other local makers.
Whether Kitty strings were machine or hand made I can’t say.