This trimming line reel is made from high-quality materials to ensure flexibility and durability with regular use. The included lawn mower replacement cover is constructed from high-grade materials to securely hold the line reel in place during mowing tasks. This product focuses on both functionality and user safety while maintaining reliable performance. The self-feed trimming line reel simplifies trimming operations. The line spool can be easily replaced, and the trimmer automatically feeds the line using centrifugal force. This design eliminates the need to manually wind the line during use, reducing effort and saving time. Designed for efficient cutting, its aerodynamic shape reduces drag, allowing for smoother operation and faster grass cutting. A practical solution for improved trimming efficiency. Installation and removal are quick and straightforward, making these trimmer line reels user-friendly. Each spool is pre-wound for convenience and can be replaced in seconds. Attach it securely using the simple snap-in feature—no special tools or complex instructions required. Package includes: 4 replacement trimmer cord spools (196146-9/195858-1), 1 replacement spool cover (231352-0), and 1 spring. These replacement parts are compatible with Akkusense 18V DUA181Z, DUR181RF, DUR181, and MAKITA trimmers. A complete set designed to meet various lawn care needs. Material: nylon. Color: white and black. Package Contents: 4 x spool, 1 x cover, 1 x spring. Only the items listed are included; other products are not part of this package. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.