Herewith Kizuna Duratech D61 Quality badminton stringing overview; Kizuna Duratech D61 high quality badminton string by ERR badminton restring Singapore. Kizuna D61 is just introduced in 2019. This Kizuna D61 badminton string as it is possible to begin to see the gauge is skinny only 0.61mm, but this string capable to supply “difficult”