Yonex BG70 Pro (Badminton stringing) Badminton restring using Yonex BG70 Pro badminton string "Durable Repulsion Performance" The braided oval-shaped fibre construction provides superior tension-holding properties while providing a solid feel. Designed for hard hitters. Material: MULTIFILAMENT Length: 10m (33 ft) Gauge: 0.70mm Key Properties: Durability, Medium Feeling Made in Japan YONEX Multifilament features a super-fine diameter for high durability and a soft feel on impact.