Glass Lift Freely Car window sunshade allows you to roll up and down the window freely while blocking the sunlight Flexible Fit Elastic material makes pulling easy, it can be pulled to one side and tied when not in use Classic Design Fashion and simple appearance, provide your car with a unique VIP style Package Included 2 x Car Curtains 4 x Plastic Rails 6 x Rail Bolts 2 x Hook and Loops 2 x Bandage Hasps Due to long-distance transportation and distribution, various unpredictable situations may arise. If you have any questions, please emill us directly, we promise to solve all your problems within 24 hours. Spec: Color: Gray, Black, Black Mesh(Optional) Size(L x W): 51 x 38cm/20.08" x 14.97" Suitable for most of Cars with height 38-42cm/14.96, but not big SUV Installation and Notes: 1. Please clean the place where you are going to install the rails. No oily! No dirt! 2. Install the rails by the double side tapes. 3. Keep the curtain rails for some hours and install the curtains. 4. After all installed well, please remember plug the bolts. 5. Please note before installation! 6. Recommend you open the window when installing. Sun Protection Children and pets from harmful UV rays, sun and heat. Take rest in the car without any disturbances. Enhance Privacy No sunlight leaks, provide better privacy inside the vehicle. Making it hard to see the inside from the outside. Temperature Drop Effectively keep car interior temperature, no direct sunlight, reduce the temperature in the car