Automatic closure design Seals automatically when the tow bar is disconnected to prevent entry of dust and debris Opens automatically when connected to the trailer, ensuring protection without extra steps Provides reliable protection and simple operation Sturdy ABS construction Made from ABS material for long lasting durability Maintains strong structural integrity to protect the tow hook from all weather conditions Secure hook design Designed to be fixed on the tow bar to prevent accidental drops while driving Enhances safety and reduces the risk of loss during towing Wide compatibility and easy installation Protective cover fits standard 50mm tow bars Easy to install without any tools, compatible with different camping trailers and caravans for stress towing Use scenarios At a dusty campsite or unpaved parking area: the cover protects the tow hook from dust, debris and moisture when not towing On long highway trips: the automatic closure seals the hook from the elements, while the hook stays securely fixed to prevent loss When switching between vehicles or trailers: the universal 50mm fit and tool installation allow quick, hassle protection across different campers and trailers Technical details and benefits Function: automatic closing and opening for continuous protection with no extra steps Compatibility: fits standard 50mm tow bars; suitable for various camping trailers and caravans Size: standard 50mm tow bar compatibility Material: ABS for durability and weather resistance Performance: protects tow hook from dust, debris, and atmospheric conditions while ensuring safe towing and easy use