The Kupo Car Window Mount Kit is ideal for providing a stable platform for a camera or spotting scopes. The clamp can be attached quickly and securely to the top edge of the glass of a car's window. The window glass is well-protected by rubberized cork inside the clamp, and the ballhead can support up to 8.8lbs (4kg) and can be instantly locked in any position with the single lever. Includes Kupo's car window mounting clamp (KG010911) and midi ballhead (KG006211). Weight: 0.7lb (320g)