Yakima bike rack for mounting on car/truck roof rack cross bars. Holds one bike. Adjustable to fit any circular or aerobar style roof rack cross bars. Adjustable to fit multiple bike wheel diameters (see picture). Has built-in anti-theft wire lock. In like-new condition. Used only a couple times. Zero issues and blemishes. Comes with two keys. Selling because I now use a hitch rack, so no longer need this.