RSJA-01 Spool: Durable MaterialMade with high-quality ABS for a lightweight yet robust construction Efficient Nylon StringEquipped with a 1.6mm sky-blue round nylon line for precise and effective trimming Ample LengthOffers 32 feet (10 meters) of nylon line, perfect for extended use without frequent replacement Compact DesignMeasures 65mm x 20mm, ensuring easy handling and seamless compatibility with Spear & Jackson trimmers Reliable PerformanceEngineered for smooth operation and long-lasting performance in demanding lawn care tasks RSJA-01-1 Spool Cap: Premium Quality MaterialThis grass trimmer cap is constructed from high-grade ABS plastic, known for its toughness and resistance to environmental wear Seamless CompatibilityMeasures 82mm x 38mm, ensuring easy handling and seamless compatibility with Spear & Jackson trimmers Easy ReplacementThis compact and lightweight cover is tailored for effortless installation. Swap out old or damaged covers quickly to keep your trimmer in optimal working condition Reliable ProtectionActs as a shield for your trimmers internal mechanisms, safeguarding them from dirt, debris, and impact during operation User-Friendly DesignWith its straightforward installation process, this trimmer cover requires no specialized tools, making it ideal for both professional landscapers and casual users Specifications: RSJA-01 Spool: Material: ABS Nylon Rope: 1.6mm Sky Blue Round Length: 32FT / 10M RSJA-01-1 Spool Cap: Material: ABS Product Size: 82*38mm Compatible with: Spear and Jackson GT450, GT600, N1F-GT-280/450-D, S6030ET Package included:8 x Replacement Spool1 x Spool CapOther things not included