Material: High Strength Composite Note: The "U" in the part number reflects product packaged in poly bag. This mount does not include the power adaptor but will accept the Garmin factory power adaptor from the original mounting system. The cradle does not block the internal antenna or speaker and allows for use of the factory 12V power adaptor. Utilizing a 1" rubber ball, this cradle seamlessly integrates into any of the RAM compatible mounts. Weight:0.11 lbs.