4Pcs Spool Caps for Ryobi Oneand 18V 24V 40V Grass Trimmer AC14HCA Replacement Spool Cap Made from ABS, known for its durability and strength, it is suitable for the wear and tear of lawn trimming tasks Compatible with Ryobi Oneand Cordless Trimmers, suitable for Ryobi Oneand 18V, 24V, 40V, RY40204, RY40220, ZRP2080, etc. It protects the spools on your lawnmower and securely fastens them to the trimmer, protecting your spools from damage Tool-free installation, press the spool cap, and rotate it to the appropriate position according to the arrow to lock it, very convenient and quick Specifications: Part number: AC14HCA Material: ABS Spool cap size: 33 x 75mm Package included: 4 x Spool Caps Other things not included Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.