WATIEOBOOyoyo TC4 Aviation Titanium Professional Grade Non-Responsive yoyo for Adults Professional Yo-Yo Competition, yo-yos Contest, and Yo yo Trick ShowWATIEOBOOyoyo TC4 Aviation Titanium Professional Grade Non-Responsive yoyo for Adults Professional Yo-Yo Competition, yo-yos Contest, and Yo yo Trick Show