Made With Special High-strength Polymers. Supplied With Four 300 Mm Pieces Of Line. 3 Mm Square Line. New Profile, Specifically Designed To Achieve Maximum Performance While Limiting Traction On Small-displacement Brush Cutters. Line Replacement Is Completely Manual And Easy To Perform. Any Type Of Line Can Be Mounted. Adapter Washer Kit For Mounting On Any Type Of Brush Cutter. Interlocking Line Lock.