0.67mm badminton string with a natural gut feel, ideal for high-life and touch. - Brand: Babolat - Model Name: Hyperbraid Micro - Gauge: 0.67mm - Material: Natural gut touch - Type: Multifilament - Made in: France Thank you for viewing. There are many available, but these are old stock, so they are being offered at a great discount. Bulk purchases are welcome. We hope you will use them for stringing or practice.