Product Name: Lawn Mower Parts Inner hole diameter: 12mm Diameter: 25cm/9.84 inches, adjustable to 26cm/10.24 inches Time and effort saving: Equipped with four extremely sharp leaves, this grass chopper ensures fast and effective cutting, saving your time and energy. No sharpening required, making tasks faster and easier. Adjustable design: It features a central 12-millimeter inner hole with a total diameter of approximately 25 centimeters. It has 12 installation holes, which can be adjusted for installation and flexibly expanded to 26cm to meet different needs. High-quality materials: Made of high-quality materials, it is resistant to fading and rusting, ensuring long-lasting performance even under extensive use. Multi-functional: Our product also serves as a vegetable chopper. It can be used to chop vegetables or grass to feed poultry and livestock such as chickens, ducks, geese and pigs, which increases its practicality. Widely applied: It helps to reduce agricultural costs and makes the chopping of grass and vegetables more efficient. Ideal small and large-scale agricultural tasks.