Construction: The Replacement for HARBOR for FREIGHT for 20115E-B Double-Ply Spool is designed to withstand the rigors of outdoor use, long-lasting performance and reliability during your trimming tasks,for 5.5Amp 15 inch.Electric String Trimmer.Easy Installation: This spool is engineered for quick and hassle-free installation, allowing you to replace your old spool without the need for special tools or extensive instructions.For Cutting: With its double-ply design, the spool delivers precise cutting power, making it for tackling tough weeds and grass with ease, a clean and manicured lawn.Compatibility: Specifically designed for HARBOR for FREIGHT for 20115E-B Corded Electric String Trimmer, this replacement spool guarantees and functionality for optimal performance.Cost-effective Solution: Purchasing this replacement spool extends the life of your trimmerProduct Name:spoolMaterial:Nylon+ABSColor: BlackPackage Contents:4 x Spool 4 x CoverOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.