Excellent Cutting Performance45 screws and 45 blades included, size: 35*18*0.75mm, smooth edge with 0.75mm thickness, sharp and durable. This lawnmower blade improves the performance of your lawnmower, allowing you to mow your lawn efficiently High Quality MaterialTitanium lawnmower blades made of high quality stainless steel with titanium coating, excellent rust resistance, anti acid and alkali, wear resistant to provide the ultimate durability Weather ResistanceTitanium knife blades not only provides better protection against rust, but also guarantees high efficiency in bad weather, guarantees longer service life to meet a variety of needs Easy to ReplaceRobot lawn mower blade, very easy to install and change with screws. You can reverse it while one side is blunt. Keep your lawn clean, green and healthy. > Properties: High quality stainless steel and titanium coating for excellent rust resistance, for long life. The blade for robot lawn mower is smooth and sharp, the cutting effect is clean and even, at the same time the cutting noise is relatively low. Note: < p>1. Replacement blades are extremely sharp, please note this when installing. Always wear gloves and safety glasses if necessary. 2. The screws should also be replaced with the new screws provided each time the blades are replaced. 3.Please keep the titanium knife blades away from children and pets due to their sharpness. Specification: Material: Stainless Steel Coating: Titanium Thickness: 0.75mm/pcs Screw length: 11mm Weight: 2.9g/pcs Lawn mower blade size: 35mm X 18mm X 0.75mm< /p>