Yeti String

Hello Everyone I recently heard about yoyo expert and this is my first time posting on here. Nice to meet you all. I recently pre-ordered what they called improved yeti string. I wanted to know if anyone has used/ heard of this product before? Bought a ten pack to try them out. I don’t know what to expect, but wanted to try a lesser known brand. Has anyone else tried them out?

Haven’t heard of it