The 0.70mm specially braided fibre increases string abrasion durability. The BG65's all-round performance makes it the choice of the world's top players Technical Specification Gauge 0.70 mm Length 10 m (33 ft) / 200 m (656 ft) / 500 m (1,640 ft) Core High Polymer Nylon Multifilament Outer Special Braided High Polymer Nylon Made In Japan