The RAM-B-189B-202U features two durable 3.3-inch twist lock suction cup bases that secure a sturdy powder-coated metal plate, complemented by a B size 1-inch ball for versatile mounting options. - Superior Grip : Engineered for an exceptionally strong hold on smooth, non-porous surfaces, ensuring your devices stay securely in place. - Optimal Surface Compatibility : Ideal for use on glass or non-porous plastic surfaces, making it perfect for vehicles, boats, or any flat surface. - Robust Design : Each suction cup measures 3.3 inches in diameter, providing a total width of 7.95 inches, ensuring solid stability for your mounted devices. Practical Applications : 1. Vehicle Mounting : Securely mount GPS devices or smartphones on car windshields for hands-free navigation. 2. Marine Use : Attach electronics on boats or kayaks without worrying about them becoming dislodged due to movement. 3. Workshop Organization : Easily mount small tools or devices on flat surfaces within your workspace for improved accessibility. Count on the RAM-B-189B-202U to uphold your devices firmly while maintaining a clean, professional appearance in any setting.