Description: -For Hyper Tough 6 Pack Spool & Trimmer Line fits auto single-line feed cutting system and compatible for Hyper Tough 20V Max String Trimmers, model number HT19-401-003-06 & HT19-401-003-07 -Fits Auto Single-Line Feed Cutting System -0.065-IN Line Diameter x 16.4 FT (1.7 mm x 5 m) Each -For Hyper Tough 20V Max String Trimmers -Compatible For Hyper Tough HT-19-401-003-06,& HT-19-401-003-07,HT21-401-003-02,HT21-401-003-03,HT22-401-03-05 Features: Material: plastic+nylon Color: as shown Size:16.4 FT Package includes: 6 pack trimmer spool 【Compatible with Hyper Tough 20V Max String Trimmers】Designed specifically for Hyper Tough 20V Max String Trimmers, model number HT19-401-003-06 & HT19-401-003-07, ensuring perfect fit and performance. 【Fits Auto Single-Line Feed Cutting System】Compatible with the auto single-line feed cutting system, making it easy to replace the trimmer line for continuous cutting. 【065-IN Line Diameter x 16.4 FT (1.7 mm x 5 m) Each】Each spool contains 16.4 FT of 0.065-IN (1.7 mm) diameter trimmer line, providing ample length for efficient trimming. 【Quality Material】Made of durable plastic and nylon, ensuring long-lasting performance even in tough trimming conditions. 【Convenient Package】Includes 6 pack trimmer spools, providing enough spares for extended use.