eWINNER Action Camera Accessories Car Suction Cup Mount + Tripod Adapter for GoPro Hero 13 12 10 9 8 7 6 5 4 /for DJI OSMO Action 5 pro 4 3/OSMO Pocket 3 2/ for Insta360 X4 X3 X2/for Xiaomi YI SJCAM

very good, i love it. but still i did not use it outside the car, only inside

This unit is very small and battles to maintain its suction to the windscreen under the weight of a Hero 7 black. Because of it's size, its range of adjustability and therefore usefulness to mount in the car is limited, especially with a steeper raked windscreen. I'd recommend a larger diameter unit over this one.

Strong and works well.