Replacement spool 29252 compatible with Greenworks 24V, 40V, and 80V cordless string trimmers. This spool fits models 29252 and 29092 for Greenworks, including weed eater cap covers model 3411546A-6. 065 inch 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. Refills 16 ft of 0.065 inch weedeater line for electric string trimmers. High-quality ABS spool with durable nylon trimmer line, suitable for grass trimming and edging. Designed for long working life and strong performance. Compatible with Greenworks single line 24V and G-MAX 40V string trimmers. Auto feed mechanism uses centrifugal force and aerodynamics for reduced drag and faster cutting. Always wear eye protection and long pants when using this product to avoid injury. Unplug the tool before changing, installing, or removing accessories. This replacement spool is intended for use on young grass only. For thick weeds, use alternative tools such as blades. Material: ABS, nylon. Color: black, blue, green. Package includes: 8 x trimmer replacement spools, 2 x replacement spool cap covers. Product does not include any other items not listed. Note: Lighting and display differences may cause slight color variation between image and actual item. Measurement may vary by +/- 1-3 cm.