Trimmer replacement spools fit multiple for WORX string trimmer models: WG150, WG151, WG151.5, WG152, WG153, WG154, WG155, WG155.5, WG156, WG157, WG160, WG160.1, WG160.2, WG163, WG165, WG175, WG180. Contains 4 rolls of WA0010 replacement spools, 1 WA6531 spool cap. Compatible with original spool model WA0010 and cap model WA6531 GT. The WA0010 replacement trimmer spool is compatible with for Worx cord trimmers and utilizes centrifugal force to feed trimmer cord as needed. The automatic feed system for changing spools relieves the tedious work of manually winding spools. High quality ABS spool and durable polyamide nylon thread for flexibility and long life. Utilizes centrifugal force and aerodynamics to reduce drag and achieve fast cuts. Each replacement spool comes pre-spooled and can be easily replaced in seconds. Perfect for maintaining your home, garden, courtyard, or lawn with ease. Description: The grass cutting rope reel is a convenient replacement trimmer spool compatible with for Worx cord trimmers. Featuring an automatic feed system, it utilizes centrifugal force to efficiently feed trimmer cord as needed, eliminating the hassle of manual winding. This set includes 4 rolls of WA0010 replacement spools and 1 WA6531 spool cap, designed to fit models such as WG150, WG151, WG152, and more. Crafted from high-quality ABS spool and durable polyamide nylon thread, these spools offer flexibility and long-lasting performance. With aerodynamic design for reduced drag and quick cuts, each pre-spooled replacement spool can be easily installed in seconds. Perfect for maintaining your home, garden, courtyard, or lawn with ease. Item Name: Trimmer Spool Line Material: Plastic Scope of Application: Suitable for WORX Lawn Mower Features: Quick Cut, Long Longevity, Portable Size Details: Line Shaft Diameter: 4.1cm/1.6" (Approx.) Cap Diameter: 5.6cm/2.2" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 4 x Trimmer Spool Line 1 x Lid