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: 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 wound using CNC cutting and automatic winding technology, ensuring safer and more efficient operation than manual winding. Reduces trimmer damage and prevents clogging during mowing. Precaution: When using this product, wear protective goggles and long clothing to avoid injury from flying debris. Always disconnect the power source 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 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. Auto-feed spool design eliminates the need for hand-winding. Package Includes: Spools and cap as shown in image. Our products are made with high-quality materials and designed for optimal performance. We aim to ship all orders within three business days. Estimated delivery time is 815 days. Please review product dimensions and specifications carefully to ensure compatibility. For any questions or concerns, feel free to . We are committed to your satisfaction. Thank you for choosing our product.