Compatible with Volvo XC40 2019 2023 Material and safety: Made from grade material that is safe and practical for use with pets and children. Designed to support pet comfort and overall vehicle safety. Key function: Allows the car window to be opened for airflow while preventing children and pets from sticking their heads out, reducing distraction and risk. Easy installation: Slits in the and bottom of the device secure it to the car vent, providing a stable fit. No tools are required, and the design helps prevent slippage during use. Practical use scenarios: On family road trips with a dog or young child, enabling ventilation without compromising safety. Daily commuting in warm weather when you want fresh air but need to keep pets safely inside the cabin. Short or long stops where you need continued airflow while maintaining supervision and safety. Compatibility and scope: Specifically designed for Volvo XC40 models from 2019 to 2023, aligning with the vehicle's ventilation system to deliver a stable, secure barrier.