The RAM-B-217U has a 2.5 inch diameter base with pre-drilled holes and two 1 inch diameter rubber balls. The balls can connect to any RAM B ball sized accessory.
RAM-B-217U shown above.
RAM-B-217U Features:
Warranty: Manufacturer's, RAM Mounts (National Products Inc.), Limited Life Time Warranty.
Base Plate: 2.5 inch diameter black powder coated marine grade aluminum with three pre-drilled holes.
Ball Size: Two 1 inch diameter rubber B sized balls.
Description: The RAM-B-217U has three pre-drilled holes and connects to any RAM B sized accessory (i.e. RAM-B-201U, etc.)
