Toalson Biologic XX 128 Black - 1 string set Toalson Biologic XX 128 Gauge: 1.28mm Color: Black Tension seal included. Although it's nylon, it has surface indentations for good grip, and is also coated, making snapback easier, so it's easier to generate spin than typical nylon strings. Due to the already competitive price, please refrain from price negotiations. 20 years of accumulated technology significantly boosts power and spin performance!! Responding to the voices of many fans who wanted its return, BIOLOGIC 128 has been reborn as BIOLOGIC XX 128, with a revised surface coating to improve spin performance and repulsion. The manufacturing method, which uses polyurethane that is gentle on the elbow and arm, remains unchanged, making it suitable for a wide range of players, from old fans to multi-filament beginners. Color: Natural, Black Material: High-elastic soft multi-filament, Polyurethane Gauge: 1.28mm Length: 12.2m Made in JAPAN #strings #guts (strings) #Toalson