Applicable models: MercedesBenz GLE Coupe (20152018) Material and safety: Made from PP material to provide a safe and practical solution that supports your pet's safety and comfort during travel Ventilation and security: Provides ventilation and fresh air for dogs when the rear window is partially open, while keeping the dog securely inside the vehicle and preventing escape during motion Installation and fit: Tool installation with a scalable design that allows the window opening to be widened for better ventilation Benefits and features: Helps maintain airflow in the cabin, reduces distraction from a restless pet, and secures the dog without compromising the window operation Use scenarios: 1) Daily commuting with the rear window partially open, ensuring airflow while keeping your dog safely contained 2) Long road trips where continuous ventilation is beneficial for pet comfort 3) Quick errands on warm days, providing fresh air without risking pet escape during driving