Kumpoo JS‑67 is a 0.67 mm hard‑feeling, durable, all‑round badminton string, designed for players who want power + durability + crisp control. It is thicker than JS‑63/65 and sits in the “power‑durability” category.

• Gauge: 0.67 mm

• Feel: Hard

• Type: Multifilament + braided processing

• Core Material: Ultra high‑strength nylon

• Outer Material: High‑strength nylon

• Coating: High‑molecular resin (reduces friction, improves clarity)

• Length: 10 m

• Max tension: 45 lbs