Dual Suction Cup Power: Engineered with two heavy-duty suction cups, this base provides multiple times the holding power of single-cup models. It creates an ultra-secure, shockproof vacuum seal on windshields, keeping your device stable even on rough terrain or in watery conditions. Universal 1" Ball Compatibility: Features a standard 1" (25mm) ball, making it fully compatible with RAM Mounts "B Size" double socket arms and the entire ecosystem of 1" ball accessories. It's the trusted foundation for building a professional, heavy-duty mounting system. Versatile Mounting Surfaces: Adheres securely to any dry, smooth, and clean non-porous surface, including metal/glass surfaces, automotive windshields, hoods, roof panels, and trunk lids. Please note it is not suitable for textured surfaces like leather dashboards. Flexible & Adjustable Design: The dual ball heads structure allows for wide angle adjustments to suit different scenarios. The adjustable space between the two cups enables a secure attachment to curved surfaces, and an included L-wrench ensures a supremely tight and secure lock for maximum stability. Connect it with any compatible arm and device holder to create the perfect, ultra-stable mount for your phone, GPS, dash cam, or action camera. Ideal for demanding applications in trucks, construction equipment, boats, motorcycles. Build the ultimate mounting solution with the FPN Dual Suction Cup Mount Base. Engineered for superior strength and versatility, this base provides a rock-solid foundation for your essential devices in the most demanding conditions. Its dual heavy-duty suction cups deliver unparalleled holding power, creating a shockproof vacuum seal that keeps your phone, GPS, dash cam, or action camera securely in place, even on rough terrain or in wet environments. Featuring a standard 1" (25mm) ball, this mount is compatible with RAM Mounts "B Size" double socket arms and a wide range of 1" ball socket accessories, allowing you to create a custom professional setup. The flexible dual ball heads and adjustable cup spacing ensure a perfect fit on curved surfaces, while the included L-wrench guarantees a supremely tight lock for maximum stability. Easily mount it on dry, smooth, non-porous surfaces like windshields, metal panels, and glass. From trucks and construction equipment to boats and motorcycles, this is the heavy-duty base you can rely on.