Extra Value Pack: Comes with two durable mounting disks and two additional replacement sticky pads, offering great value and the convenience of having spares when needed.Universal Compatibility: Perfectly sized at 3.14 inches (80mm) to fit a wide range of car phone holder mounts, GPS devices, and dash cams, providing a versatile solution for all your in-car mounting needs.Perfect for Curved Dashboards: Engineered to create a flat mounting area on curved or textured surfaces, these adhesive disks provide a strong foundation for suction cup car mounts. Enjoy a smooth, flat surface that enhances the suction grip of your phone holders, GPS Navigators, and dash cams for a secure and stable hold.High-Performance Adhesion: Utilizes high-strength 3M VHB adhesive for a secure, long-lasting hold on your car dashboard, ensuring your devices stay firmly in place during any drive.Reliable and Maintainable: Made to withstand both hot and cold conditions, the adhesive maintains its hold without warping or weakening, ensuring your devices remain secure.