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. Refills 16ft of 0.065 inch weedeater line for electric string trimmers. Constructed with high-quality ABS spool and durable nylon trimmer line, designed for long-lasting performance. Suitable for single line 24V and G-MAX 40V Greenworks string trimmers. Auto feed mechanism uses centrifugal force and aerodynamics for reduced drag and efficient cutting. Note: Always wear eye protection and long pants when operating this product. Disconnect power before installing, removing, or changing 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 contents: 8 x Trimmer replacement spools, 2 x Replacement spool cap covers. Only the listed items are included. Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.