Compatible with Worx models string trimmer: WG150,WG151,WG151.5,WG152,WG153,WG154,WG155,WG155.5,WG156,WG157,WG160,WG160.1,WG160.2,WG160.3,WG160.4,WG163,WG165,WG166,WG166.1,WG170,WG170.1,WG175,WG175.1,WG180 cordless (50006531) grass trimmers. Includes: 3 replacement worx weed eater handle cap for Worx electric handlersTool-free worx spool trimmer capProtects the line and holds the spool in placeExchange or refund will be provided for your preference. Description:This is the original parts replacement for worx weed eater. The cover protects the trimmer spool during use. The Weed wacker cap works with the spool line assembly to allow the line to feed while trimming. This allows for continuous trimming without having to frequently stop and replace damaged string lines. With normal wear and tear, these bottle caps may be worn, broken or cracked. To remove the old chain cap, press the tabs and the line cap should pull right out. CompatibilityThis eater cap is compatible with the following machines:WG150,WG151,WG151.5,WG152,WG153,WG154,WG155,WG155.5,WG156,WG157,WG160,WG160.1,WG160.2,WG160.3,WG160.4,WG163,WG165,WG166,WG166.1,WG170,WG170.1,WG175,WG175.1,WG180WG166 Cordless String TrimmerWG150 Electric TrimmerWG150.1 Cordless Electric TrimmerWG150.2 Cordless Electric TrimmerWG150.9 Cordless Electric TrimmerPack:3 pcs. Replacement Reel CoversNote:This accessory kit is replacement accessories, not original worx products, and is not covered by any worx warranty, the worx brand name is the registered trademarks of the respective owner, any use of the worx brand name, model or part designation for this product is intended to demonstrate compliance.