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 during mowing tasks. This product focuses on functionality, user safety, and performance. The self-feed trimming line reel simplifies trimming tasks. The line spool can be easily changed, and the trimmer automatically feeds the line using centrifugal force. This design eliminates the need to manually wind the line during operation, making tasks less labor-intensive and time-saving. Designed for high-performance cutting, its aerodynamic shape reduces drag for more efficient mowing and faster grass cutting. A high-quality solution for maximum trimming efficiency. Installation and removal are quick and easy, making the trim line reels user-friendly. Each reel is pre-wound for convenience and can be replaced in seconds. Attach using the simple "snap" feature – no special tools or complicated instructions required, just your hands. Package includes: 4 replacement trimmer cord reels (196146-9/195858-1), 1 replacement cord reel cover (231352-0). These replacement parts are compatible with Akkusense 18V DUA181Z, DUR181RF, DUR181, and MAKITA trimmers. A complete package provides value for lawn care needs. Material: nylon. Color: white+black. Package Contents: 4 x spool, 1 x lid, 1 x spring. Only the items listed are included; other products are not included. Note: Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.