Description 1. The product can be folded freely for convenient storage. 2. High-quality aluminum foil material: double-sided aluminum foil with good reflectivity, pearl cotton in the middle layer, good sun protection effect. No special smell, non-toxic. 3. Easy to install: it can be quickly installed on the windshield. It is also equipped with multiple straps that can be folded freely and are easy to store. 4. Function: Prevent ultraviolet rays and indoor temperature changes; prevent sunlight aging and causing internal aging; prevent direct sunlight from causing internal combustion of cars. 5. Use double-sided aluminum foil with good reflectivity, and use pearl cotton in the middle layer, which has a good sun protection effect.