Compatible Trimmer Model: Bosch Universal GrassCut 18, Universal GrassCut 18-26, Universal GrassCut 18-260 grass trimmer. Spool Model: F016800570. String Trimmer Replacement Spools 6m long, 1.6mm in diameter. Premium Material: High-quality nylon cord, durable and efficient for cutting grass. Flexible and strong, allowing the line to stretch and absorb impact on hard surfaces. Excellent Workmanship: Professionally CNC cut and automatically wound for consistent performance. Safer and more efficient than manual winding, reduces wear on the trimmer and prevents clogging during operation. Safety Precaution: Always wear protective eyewear and appropriate clothing when operating the trimmer. Disconnect power before installing, replacing, or maintaining accessories. Material: Nylon Size: 6 m long, 1.6 mm diameter Trimmer Spool Model: F016800570 Compatible with Bosch Trimmer Models: Bosch Universal GrassCut 18, Universal GrassCut 18-26, Universal GrassCut 18-260 Features: Extends edging life up to 25% compared to standard conditions. Pliable and flexible design allows line to stretch and cushion upon impact. Aerodynamic shape reduces drag for more efficient cutting performance. Autofeed spool design eliminates the need for hand-winding. Package Includes: Replacement spools as shown