- COMPATIBLE WITH BLACK AND DECKER TRIMMERS: This spool cap is engineered for specific Black & Decker models, including STC1820PC, STC1840, ST5530, STC1815, and others. It replaces part numbers 385022-02, 385022-03N, 385022-03, and 90624846, ensuring a perfect fit for your equipment. - TOOL-FREE INSTALLATION: Efficiently replace your trimmer spool without the need for tools. Simply align the cap and press down to secure it, making maintenance quick and hassle-free. - DURABLE ABS MATERIAL: Constructed from high-quality ABS plastic, this spool cap offers remarkable strength and durability. It withstands regular use, ensuring long-lasting performance during your gardening tasks. - PROTECTIVE FUNCTIONALITY: This cap safeguards your trimmer line, holding it firmly in place and reducing the frequency of adjustments. Enjoy seamless operation while trimming your lawn or tackling overgrown areas in your garden. - VERSATILE APPLICATIONS: Ideal for residential and commercial gardening, this spool cap is perfect for maintaining tidy lawns, edging flower beds, and clearing weeds. Its reliable design enhances the efficiency of your trimmer, allowing you to focus on achieving a well-manicured landscape. - EASY TO USE: Designed for user-friendliness, the spool cap allows you to get back to work quickly. Spend less time on maintenance and more time enjoying your outdoor space. Choose this spool cap for a dependable solution that enhances the performance of your Black & Decker trimmer and simplifies your gardening experience.