compatible: For Mammotion Luba and Yuka series of robotic lawnmowers. (LUBA AWD 1000 to LUBA AWD 5000 LUBA 2 AWD 3000 to LUBA 2 AWD 10000 YUKA 600 to YUKA 1500,etc.) First-Class Workmanship Blades: Our blades are made of high-quality stainless steel. This makes them durable, robust, shatterproof and corrosion-resistant. In additional, 2 hole design blades can be flipped and used on both sides,Can be used up to 4 times. Quality Screws and Washers - These screws have a good anti-rust and anti-corrosion effect. The safety varnish and plastic washers protects against vibration-related unscrewing. High-quality Cutting Performance: These replacement blades produce an evenly smooth cutting pattern, the result is a beautiful, even lawn pattern and thus a permanently healthy lawn. Color: Gold Material: Stainless Steel Package Contents: 72 * Blades 72 * Screws 72 * Washers