The window suction cups are made of high-quality PVC material, tear-proof, not easy to deform and crack-resistant, guaranteeing long-term reliability, which has such a strong suction that you don't worry about your objects slipping off the suction cup. Specification? Brand: KITUREK Name: Car Windshield Sunshade Suction Cup Color: Transparent/Black Material: PVC Size: 1.49×0.95 inch Applicable: Most vehicles Features: -If the car dovetail suction cup has weak adsorption or is deformed due to long use, it can be soaked in hot water for about 1 minute and can be reused. -Clean the touching surface before you use the suction cup, then let the suction cup touch the surface and rotated. -The window suction cup is suitable for various car models and is perfect for securing sunshades and providing shade and privacy while driving.