Aviation aluminum material is only 30g light. The dual cold boots are richly expanded and support Vertical and horizontal switch. Foam caulking, the camera is firmly fixed. Screen finger positioning design, no pressure to turn the screen. There are 2 finger positions for flipping the screen, making it easy to open the screen. No fear of vibration, worry-free riding Use rubber rings to enhance screw damping. The screws will not loosen while riding motorcycles and bicycles, and there is no need to worry about the camera falling off the frame and falling to the ground. Compatible products:For or Pro Product Name: For or Pro Metal Cage Dimensions: 88.3 x 61.2 x 33.6 (mm) Cage Weight:30g Material: Aluminum alloy colour: grey Package Contents: 1 x metal expansion frame 1 x lens protective cover 1 x vertical adapter 1 x hex wrench 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.