Herewith Kizuna Duratech D61 Premium badminton stringing overview; Kizuna Duratech D61 quality badminton string by ERR badminton restring Singapore. Kizuna D61 is just launched in 2019. This Kizuna D61 badminton string as it is possible to see the gauge is slim only 0.61mm, but this string able to supply “really hard” feeling. On this b