Bog 735561 Spotting Scope Adapter - The BOG Spotting Scope Adapter clamps securely to a vehicle window to provide a steady viewing platform. The adjustment handle allows the adapter to glide smoothly and can be locked down securely. The clamp is wide enough to attach to tree stands in box blind windows and on security bars up to 1" thick. The rotating head has the BOG Switcheroo System incorporated so it can easily be installed to any BOG Tripod with a removable head.