Replacement spool 29252 compatible with Greenworks 24V, 40V, and 80V cordless string trimmers. This replacement spool fits models 29252 and 29092 for Greenworks, including weed eater cap covers model 3411546A-6.065. Single line auto feed spool compatible with Greenworks string trimmer, edger, and weed eater models: 21332, 21222A, 21602, 21062, 21132, 21242, 21282, 21312, 21302, 21342, 21262, 2100202, 2100302, 2100702, STBA40B210, ST40B410, BST4000, ST40L00. This replacement spool refills 16 feet of 0.065 inch weedeater line for electric string trimmers. Made with high-quality ABS spool and durable nylon string, designed for long-lasting performance. Suitable for use with single line 24V and G-MAX 40V Greenworks string trimmers. The auto feed design uses centrifugal force and aerodynamics to reduce drag and enable fast cutting. Note: Always wear eye protection and long pants when operating this product to avoid injury. Unplug the tool before changing, installing, or removing accessories. This refill is intended for use on young grass only; for tougher weeds, use appropriate tools such as blades. Material: ABS, nylon Color: Black, blue, green Package contents: 8 x Trimmer replacement spools, 2 x Replacement spool cap covers The package includes only the items listed above; other products are not included. Note: Lighting conditions and display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.