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. Spool cover cap model: 1600A01R5J. 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: Precision CNC cutting and automatic winding ensure consistent performance, reduce trimmer wear, and prevent clogging during mowing. Precaution: Always wear protective eyewear and appropriate clothing to prevent injury from flying debris. Disconnect power before installing, removing, or replacing accessories. Specification: Material: Nylon. Size: 6m long, 1.6mm diameter. Trimmer Spool Model: F016800570. Trimmer Cover Cap Model: 1600A01R5J. Compatible with Bosch Trimmer Models: Bosch Universal GrassCut 18, Universal GrassCut 18-26, Universal GrassCut 18-260. Features: Extends edging life compared to standard conditions. Pliable design allows line flexibility and impact resistance. Aerodynamic shape reduces drag for more efficient cutting. Autofeed spool design eliminates the need for manual rewinding. Package Includes: Spools and cap as shown.