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. Features a 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. The spool refills 16 feet of 0.065-inch weedeater line for electric string trimmers. Constructed with high-quality ABS spool and durable nylon trimming line, designed for strength and longevity. Compatible with Greenworks single line 24V and G-MAX 40V string trimmers. Auto feed mechanism uses centrifugal force and aerodynamics to reduce drag and enable efficient cutting performance. Always wear eye protection and long pants when using this product to avoid injury. Unplug the tool before changing, installing, or removing accessories. This cordless weed eater spool is intended for use on young grass only. For thick or woody 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 Note: Light shooting and different displays may cause slight color variations between the item in the picture and the actual product. Measurement may vary by +/- 1-3 cm.