Don’t let some jerk steal your bike! Since SeaSucker bike racks aren’t bolted on to rooftop bars, we came up with a way to keep your bike safe. A Cable Anchor is just what it sounds like – an anchor point to securely connect a cable loop to your car. The Cable Anchor – Window, slides over the glass and rolls up into the window frame. Each is made of polished stainless steel and has a wide 1.375″ hole to thread a cable lock through. The Cable Anchor - Window, is not recommended for tinted windows.