Features: Upgrades your car phone mount setups with this 17mm adhesive ball head base, featuring strong double side sticky pad for secure attachment and 360 degree adjustable compatibilities with magnetic phone holders. Engineered with a standardized 17mm plastic ball joint and adhesive base, this car accessory enables viewing angles while maintaining dashboard safe installation through 24 hour curing. Ideal for driver, outdoor adventurers, and commuters seek reliable device mounting solution for smartphones, action cameras, or units during ride or daily travels. Secure attaches to smooth surfaces like windshields, dashboards, or office desks, providing viewing for navigation, video calls, or entertainment across vehicle, homes, and workspaces. Its reinforced adhesive layer withstands temperature fluctuations ( 22°F to 176°F) and vibration resistant design ensures year round stability for car phone mounts and magnetic phone holders. Specifications: Material: Plastic Color: Black Size: about. 56x63mm/2.2x2.48in Ball Head: 17mm Package Includes: 1pc Ball Head Base note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color. ONLY include ball head base, other accessories NOT include.