Features: [Traction] When the lawn is wet or the property has many slopes, the spikes provide better traction for the robot lawn mower, helping to prevent digging into the lawn. With these robotic spikes for Worx Landroid, you can help keep your lawn robot on the surface and maintain lawn integrity. [Premium Material] The spikes are made of stainless steel, which offers rust resistance and durability. Dimensions: 225mm x 2.5mm. Includes 12 stainless steel screws. [Easy Installation and Lawn Protection] Simply insert the spike into the center of the wheel and secure with the included screw. These spikes help protect your lawn by reducing damage and preventing the robot from digging holes. [High Compatibility] Designed for wheels sized at 225mm; compatible with all L models of Landroid lawn mower robots. Specifications: Model TLWL-02, Material: Stainless Steel, Color: Silver. Package Contents: 2 x Traction Wheels, 12 x Nails, 1 x English Manual. Note: Light reflection and display differences may cause slight variations in color. Measurement error allowance: +/- 1-3cm.