Spool Cap Specification: Compatible with Greenworks spools, 16ft 0.065 inches, fits original spools models 29252 and cap covers models 3411546A-6. Compatible with Greenworks string trimmer models: 21332, 21222A, 21602, 21062, 21132, 21242, 21282, 21312, 21302, 21342, 21362, 21262, 2100202, 2100302, 2100702, STBA40B210, ST40B410, BST4000, ST40L00. Replacement spool cap 3411546A-6 for Greenworks, made of high-quality ABS material, durable and reliable. Protects the trimmer line and fixed spool, helps prevent debris from getting caught inside, reducing potential damage to the trimmer. Easy to install – simply remove the old cap and snap the new one into place in seconds. Color: Green Material: ABS Package Contents: 3 x Spool Cap Note: Light and display settings may cause slight color variations between the image and the actual item. Measurement allows an error of +/- 1-3 cm.