Review on Set Of 2 Randconcept 3M VHB Adhesive Dashboard Mounting Disks, 80Mm Diameter For Strong Suction Cup Phone & Garmin GPS Mounting, Compatible With Disks Up To 3.15 Inches Wide by Sean Perry

I followed the directions for prepping the surface. I found a flat spot on my dash and stuck it on there. The direction call for a weight to be placed on top to make sure it sticks. I had a 10 lb medicine ball that I wedged in between the windshield and the dashboard and left it in place for an hour, figuring that would give it plenty of time to stick. Outside temperature was in the 60s that day. But the first cold snap at night, and it lost all adhesion. Really disappointed at how quickly it came off.