For Husqvarna Automower 450X/440/435X/420/330 Lawn Mower 2 RSWH-01 Spikes + 21 Self-Tapping Screws • Provides Traction: When the lawn is wet or the ground has many inclines and slopes, the spikes give the robotic lawnmower better traction, helping to prevent slipping • Built to Last: Made of high-quality plastic material, wear-resistant and durable, designed to provide reliable performance over time • Easy To Install: Center the spike on the wheel and secure it with the included screws • Maintains Lawn Quality: Designed to help protect your lawn from damage caused by wheel slippage Compatible with: • Husqvarna Automower 330 • Husqvarna Automower 440 • Husqvarna Automower 420 • Husqvarna Automower 435X AWD • Husqvarna Automower 430X • Husqvarna Automower 435X • Husqvarna Automower 450X Package included: • 2 x Spikes • 21 x Self-tapping Screws • 1 x English User Manual