General description Spool Caps are essential accessories for trimmers and brush cutters, designed to enhance the performance and longevity of your lawn care equipment. This set includes 4 spool caps and 4 spool springs, providing ample replacements for daily use. Technical specifications Material: ABS and carbon steel Spool cover size: 85 x 32 mm Spring size: 23 x 36 mm Color: Orange cover with silver spring Compatibility and accessories Compatible with most lawn mowers, including models AFS GH400, GH500, GH600, CST1000, CST2000, NST2018, ST7000, etc. Installation Install the included spring on the spool cover into the bottom slot of the trimmer. Press and rotate the spool cover until the latch locks to complete the installation. Usage Ideal for replacing old or damaged valve caps and springs. Suitable for terraces, lawns, patios, gardens, and landscaping.