Lightwish - Black Aluminum CNC Diving Lights Ball Clip Mount Butterfly-type Clamp Mount Accessory Kit With Ball Adapter For GoPro Hero4 Silver Black Hero 4 3+ 3 2 Session Lightweight Aluminum Alloy material This set is useful for connecting the diving flashlight arm and the GoPro cameras or diving flashlight It can rotate 360 degrees and can be rotated about 80 degrees in the horizontal direction Material: Aluminum Alloy; Weight: 80g/ 2.82oz