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 durable materials to securely hold the line reel in place during mowing tasks. This product focuses on functionality, user safety, and reliable performance. The self-feed trimming line reel simplifies trimming tasks. 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 operation, making the task less labor-intensive and time-saving. Designed for efficient cutting, its aerodynamic shape helps reduce drag, promoting more effective mowing and enabling more grass to be cut in less time. A high-quality solution for improved trimming performance. Installation and removal are quick and easy, 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 complicated instructions required. Package includes: 4 replacement trimmer cord spools (compatible with models 196146-9/195858-1), 1 replacement cord 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 mowing needs. Material: nylon Color: white + black Package Contents: 4 x spool 1 x lid 1 x spring 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.