RAM Spine Clip Garmin Mount with Handlebar U-Bolt Base (RAM-B-149Z-A-GA76U) (sku 54881)Kit includes RAM Spine Clip Holder for Garmin, B size diamond ball base, short double socket arm and RAM U Bolt base Holder secures any Garmin handheld device with an integrated spine connection U bolt base includes bar spacer and accommodates rails from . 5" to 1. 25" in diameter The RAM Spine Clip holder is a mount adapter that easily clips into the integrated spine connection on a wide variety of Garmin devices. Included is a medium length RAM