luxilon 4g rough 1 25mm 200m string reelLuxilon 4G Rough 1. 25mm golden polyester string is a textured version of 4G that shows more string flex, generating a greater spin potential and a smoother, more controlled feel. There is also an increased sense of ball grip at impact and maximum tension retention for longer durability. By buckling the string while still soft, Luxilon maintains the structural integrity and benefits of the 4G string. With 30% higher tension maintenance, players using