Windshield Suction Cup Car Mount for Gopro Hero 3+ 3 2 1 with 7cm Diameter Base This suction cup is designed for fixing cameras on the surface of the motorcycle or car to ensure the gopro machine will not drop in high-speed motion This is the most widely installed uses fixed. It's one of the best choices in your extreme sports. Package Includes: 1*Windshield Suction Cup Car Mount for Gopro Hero 4 3 2 1 with 7cm Diameter Base