- Holder for mounting two GoPro action cameras, perfect for skiing, mountain biking, motocross and other action sports ,- Allows simultaneous filming in two different directions ,- Very compact rail ,- Variable alignment with two mounting screws - Thread/Connection: GoPro ,- Material: Plastic Material ,- Length: 9 cm ,- Min. Height - Max. Height: 5.4 -5.4 cm ,- Weight: 50 g ,- Colour: Black 2 years legal warranty only