Herewith Kizuna Duratech D61 High quality badminton stringing overview; Kizuna Duratech D61 high quality badminton string by ERR badminton restring Singapore. Kizuna D61 is simply released in 2019. This Kizuna D61 badminton string as you can see the gauge is slim only 0.61mm, but this string equipped to deliver “tough†emotion. With thi