About the Isotope 2
The updated Isotope based on the Positron 2 shape. This was the yo-yo Takeshi Matsuura used to win the 1A division at the 2014 Japan National Yo-Yo Contest and to place 2nd at the 2014 World Championships behind Gentry Stein, cementing its competition pedigree. Multiple new colorways were released throughout 2014.
