Automatic Feed Coil: The replacement coil for 's grass trimmer is easy to use and automatically feeds the trimming machine through centrifugal force, reducing the need for manual sorting and replacement of trimming line coils during use. Material: 's trimmer line for 's grass trimmer is made with improved nylon polyamide material, which has a tensile strength exceeding 100 pounds and is 30% more than other , resulting in longer-lasting use. Efficient Cutting: The flexible and resilient thread on the trimmer line spool for 's grass trimmer allows for stretching and buffering of impact on hard surfaces, increasing cutting efficiency by 50% and allowing each spool to cut more weeds. Easy to Install: The replacement coil for 's grass trimmer is easy to install and fits securely, ensuring that it stays in place during use. Wide Compatibility: The replacement coil is compatible with several models of for 's grass trimmers, making it a versatile and convenient choice for anyone looking for a reliable replacement trimmer line. Specification: Certification: NONE : Model Number: Trimmer Spool Type: Mower accessories Specifications: Line length: 9.14m/359.84inch Line diameter: 1.65mm/0.64inch Coil size: 67x28mm/2.63x1.10inch Single roll weight: 45g Material of spool: ABS Wire material: nylon Applicable to : for Black/ Applicable models: GL280, GL301, GL425, GL430, GL545, GL555, GLC13, GLC2500, GLC2500L, GLC3000, GL4525, GL4525SB, GL5028, GL5028SB, GLC1428SB, GLC1428SB, GLC1428SB, GLC1428SB, GLC1428SB, GLC1428SB 3L, GLC11 825N, GLC1823L, GLC1825L, GLC3630L, ST5530, ST4525, STC1820, STC1815, STC1820PC/EPC, STC1840/EPC, ST1823 Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Color: As Shown Material: Nylon Package Contents: 8-roll packaging (8-roll wire+2 springs+2 spool cover) optional Only 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.