The 0.69mm string made by Kizuna is quite good. Repulsion feels more towards 0.66mm hard strings. Control is decent, the surface is rough enough. Power is decent, though not one of the most powerful strings. Durability is good, though not one of the most durable strings. Overall, the 0.69mm string has everything ranked class-A, yet nothing special. Note : It perform very well with 68-hole string pattern
