Brand: Gosen Material: Nylon Sea Island Type Composite Yarn Gauge: 1.31mm (16GA.) Length: 12M x 1 set Color: Natural Durability: 10 Repulsion: 10 Soft Feel: 6 Spin: 8 Tension: 50-60 lbs A popular model with an excellent overall balance of repulsion, control, etc. I purchased this without packaging, but I'm selling it because I switched to a different string and didn't use it.