The Kupo Double Plate is designed to be integrated into Manfrotto RC2 and Arca-Swiss mounts. It features two smaller screws that act as bumpers which prevents the camera from sliding out accidentally while mounting on an Arca-Swiss Ball head. The screws can be easily removed via a hex tool when using this plate on the Manfrotto RC2 ball head. The added anchor port for a camera plate allows a data cable to be wrapped around preventing the data port from damage. This plate is also ideal on the ball head for both Arca-Swiss and Manfrotto RC2 quick-release plates with data port protection..