Features: Using high-quality aluminum materials to ensures durability and long-term reliability. The interface standard has a diameter of 24mm and a 10 tooth design, which is suitable for various lawn mower models and easy to replace and install. Reasonable design, quick replacement, no need for professional tool, suitable for users to repair on their own. Precisions gear trimming can effectively improve the efficiency of lawn mowers, ensuring even and smooth lawn trimming. Suitable for multiple brands and models of lawn mowers, it is a common universal accessory. Specifications: Material: Aluminum Product size: interface diameter 24mm Number of gears: 10 teeth Package Includes: 1Piece Trimmer Gear Head note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.