The RAM Mounts RAM-B-224-1U is a robust suction cup base designed for secure attachment of devices in various applications. It features a 3.3-inch (84mm) diameter twist-lock suction cup, providing a strong hold on glass and other non-porous plastic surfaces. This base integrates a 1-inch (B-size) rubber ball, making it compatible with a wide range of RAM Mounts arms and holders. Constructed from high-strength composite and rubber, it ensures durability and reliable performance. Ideal for mounting phones, tablets, GPS devices, and other electronics.