1Great Durability: Robot Mower Blades are strong, durable, and rust-proof, high strength to ensure long service life, made of high-quality stainless steel with titanium coating. 2Cut Smoothly: Landroid Blades are with excellent cutting ability, featuring 0.9mm thickness for smooth cutting, improving the performance of your lawn mower. 3Endurance Blades: Worx Lawn Mower Blade is a 2-in-1 double-sided endurance blade, flipped over for multiple uses when o-ne side becomes dull, a practical lawn mower tool. 4Package List: The Lawn Mower Blades are durable, comfortable, and easy to use, including 30 lawnmower blades and 60 screws, enough to meet your needs. 5Universal Compatibility: Auto Mower Blades are suitable for all types of lawns, widely compatible with Worx Landroid, for S300 S500i M500 M700 M1000 M1000i M1200i L1500 L1500i L2000 L2000i ID B M800i M900 S500i S Basic S450i S700i, m WR130E M WR141E M WR142E M WR 143E M WR153E M WR153E. Description: Anti-rust, durable, excellent cutting performance. When o-ne side gets dull, flip it over for more use! Fit for Worx Landroid S300 S500i M500 M700 M1000 M1000i M1200i L1500 L1500i L2000 L2000i ID B M800i M900 S500i S Basic S450i S700i, s WR130E M WR141E M WR142E M WR 143E M WR153E L WR155E, and many more. Specification: Name: Double-hole Lawn Mower Blade Material: stainless steel Color: gold Blade size: about 36*18*0.9mm/1.42*0.71*0.03inch Screw diameter: 4mm/0.16in (approximately) Package List: 30Pcs *Double-hole Lawn Mower Blade 60Pcs *Screw Notes: Due to the lighting effects and camera angles, the color of the item and that shown in the picture might have a nuance. Due to manual measurement, there might be a tolerance in the product size.