RAM® Twist-Lock™ Suction Cup Base

I was skeptical about a suction cup holding my phone mount, but this one's twist-lock mechanism really grabs onto glass securely. It's stayed put through bumpy roads and even a car wash without budging.

The 3.3" suction cup holds tight on my windshield even after a week of hot sun, and the twist-lock mechanism is so easy to engage one-handed. Pairs perfectly with the diamond ball base I already had, so installation took two minutes.

I mounted this on my boat's dashboard and the 3.3" diameter cup holds tight even when I hit choppy water. The twist lock clicks into place with satisfying confidence.