Toalson Biologic XX 128 Black - 1 string 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. Please refrain from price negotiations as the price is already at its limit. 20 years of accumulated technology significantly enhances power and spin performance!! Responding to the voices of many fans who wanted its revival, BIOLOGIC 128 has been reborn as BIOLOGIC XX 128, with improved surface coating for enhanced spin 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