Product replacement for BLACK+DECKER AF-100 cover. 1. [Design] The replacement spool cap is easy to replace and perfectly compatible with the BLACK+DECKER RC-100-P trimmer. Available in 4-piece or 6-piece sets with matching springs, meeting your daily needs for replacement and storage. 2. [Function] Replacement lid designed for the spool used in line trimmers with automatic AFS feed system. 3. [Advantages] Made with advanced production technology for long-lasting performance. Features stable properties and high reliability. Ideal replacement for damaged or worn parts. Suitable for garden and agricultural use. 4. [Easy] Simple to install, helping extend the life of your trimmer without the need for a full replacement. Ideal for use on terraces, lawns, courtyards, gardens, crops, and landscaping projects. 5. [Practical] Specially designed to withstand wear along edges and rough surfaces. Improved aerodynamics help reduce noise and line vibration. Package Included: 4 x Replacement Spool Cap Cover + 4 x Spring or 6 x Replacement Spool Cap Cover + 6 x Spring