Replacement Trimmer Spool with 1.5mm Double Line for Flymo FLY021/51 Lawn Mower Autofeed Grass Cutter Precise Cutting & Easy Weeding: Our strimmer replacement wire is designed with oval aerodynamic shape, which can effectively remove weeds and keep your lawn, garden, orchard, woods, or pastoral tidy. The plastic strimmer replacement spool and line will provide higher safety and efficiency.High Quality & Durable Materials: The strimmer spool line is made of premium nylon and ABS material, durable, flexible, odorless, not easy to break and good stability, can be used for a long time. A must-have accessory for garden mowers.Versatile Trimmer Blades: Each lawn mower strimmer spool & line is a standard size, 11 meters long and 1.5mm diameter, suitable for Flymo trimmer model, such as Power Trim 500 XT, Contour 500/700, Mini Trim Auto ST/XT/Plus XT, Mini Trim Contour XT, Multi Trim 250D/300D, Speedi-Trim, Revolution 2000/2300/2500 and Twist and Edge, etc.A Must-have for Strimmer Spool and Line Replace: Value pack includes 2 pcs double line autofeed spool and line, sufficient quantity and premium quality are enough to meet your replacement needs. Designed for tender grass, please avoid collision with hard objects such as stones when using.Double Autofeed & Easy to Use : This grass trimmer spool and line are easy to install and easy to use. The double automatic feeding design saves time and effort. Easy to install, no tools required, just put the new spool on the lawn mower.