[Ingenious Design]You can easily replace the battery by flicking the switch on the frame,which adopts flip-open design for the battery cover area.No ports are blocked and all functions work normally.The cage and silicone lens protector are perfectly combined to protect the camera in all directions. [Horizontal and Vertical ]When the camera is in the metal cage,The For Pro/ quick release mount can be attached to the bottom of the camera for horizontal or attached to the side of the frame cage for vertical . [Quick Installation]The frame can be quickly installed by simply toggle or pressing the flap's buckle lock.Aluminum alloy integrated design cage with Inner Silicone Pads,the cage is closely fitted with the camera with no vibration,Applied to action high-speed sports,such as Skiing and cycling. Color: Dark Gray Material: Metal Package Contents: 1 x Quick Release Metal Frame Cage 1 x Lens protection cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.