Feature:1. Premium Material: 1 inch ball mount base is made of sturdy marine grade 6061 T6 aluminum alloy, CNC machined and III hard anodized surface for reliability and durability.2. Structure Composition: The mounting base is made of a 1 inch non slip rubber ball attached to the square base, universal installation base for electronic device.3. Square Base Plate: Our square base includes a variety of pre drilled holes with industry standard AMPS hole patterns.4. Compatibility: 1 inch ball head mount plate is compatible for RAM Base B Size 1 inch (about 2.5 cm) ball double socket arms5. Wide Applications: Ideal for mounting on boats, kayaks, semi trucks, cars, trucks, treadmills, and various off road vehicles for a wide range of uses.Specification:Item Type: 1 Inch Ball MountMaterial: Aluminum Alloy + Rubber.Package List:1 x 1 Inch Ball Mount Base