Replacement spool 29252 compatible with Greenworks 24V, 40V, and 80V cordless string trimmers. This replacement spool fits models 29252 and 29092, and is also compatible with weed eater cap covers model 3411546A-6.065. Single line auto feed spool designed for use 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. Made with high-quality ABS spool and durable nylon string trimmer line, suitable for grass trimming and edging with strong performance and long working life. Compatible with Greenworks single line 24V and G-MAX 40V string trimmers. Auto feed design uses centrifugal force and aerodynamics to reduce drag and enable fast cutting. Note: 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 grasses only. 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 Note: Light shooting and different displays may cause slight color variations between the item and the image. Measurement may vary by +/- 1-3 cm.