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, providing safer and more time-saving operation than manual winding. Reduces damage to the trimmer and prevents clogging during mowing. Precaution: When using this product, wear protective goggles and long clothing to avoid injury from flying debris. Remove the power source before replacing, installing, or removing accessories. Specification: Material: nylon. Size: 6 m long, 1.6 mm 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 grass trimmer. Features: Increases 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. Autofeed grass trimmer spool eliminates the need for hand-winding. Package Includes: Spools and cap as shown in picture. Our products are made with high-quality materials and designed for reliable performance. We aim to ship all orders within three business days. Estimated delivery time is 8–15 days. Please check product dimensions carefully to ensure compatibility. Detailed information about features and specifications is provided in the title and description. We want you to be satisfied with your purchase. If you have any questions, feel free to contact us. Thank you for choosing our product.