Replacement spool 29252 compatible with Greenworks 24V, 40V, and 80V cordless string trimmers. This spool fits models 29252 and 29092, and replacement cap covers model 3411546A-6. Features 0.065 inch single line auto feed design 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. Each spool is pre-wound with 16 feet of 0.065 inch weedeater line, ideal for electric string trimmers. Constructed with high-quality ABS plastic and durable nylon line for reliable performance and extended use. Designed for use with Greenworks single line 24V and G-MAX 40V string trimmers. Auto feed mechanism uses centrifugal force and aerodynamics to reduce drag and enhance cutting efficiency. Always wear eye protection and long pants when operating trimmer. Disconnect power before installing, removing, or changing accessories. This replacement spool is intended for light-duty use on young grass only. For thick weeds or heavy vegetation, use appropriate cutting 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 additional items not listed. Note: Display lighting and monitor settings may cause slight color variations between image and actual item. Measured dimensions may vary by +/- 1-3 cm.