luxilon 4g gold 1 30mm 200m string reelLuxilon 4G Gold durable polyester string delivers high quality precision, feel and tension that lasts. Luxilon 4G Gold monofilament string has maximum durability of tension and provides a cushioned, comfortable feel at ball impact, which suits modern game defined by power and spin. The composition of this string was designed to help players reach the next level, where its molecular chains are strategically aligned to minimize tension loss over time