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. 065-inch single line auto feed spool designed for 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 feet of 0.065-inch weedeater line for electric string trimmers. Made of high-quality ABS and nylon material for durability and long-lasting performance. Suitable for use with Greenworks single line 24V and G-MAX 40V string trimmers. Auto feed design utilizes centrifugal force and aerodynamics to reduce drag and enable efficient cutting. Note: Always wear eye protection and long pants when operating the trimmer to avoid injury. Disconnect power before installing, removing, or changing accessories. This replacement spool is intended for light-duty use on young grasses. For thick or tough 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 product. Measurement may vary by +/- 1-3 cm.