RAM® Diamond Ball Base - A Size

That rubber ball is surprisingly solid and grippy, the 0.56" diameter feels like it'll hold its shape for years. Bolted it to my dash with the standard 1.912" spacing and it hasn't budged a millimeter since.

The two screw holes lined up perfectly with my existing mount, so installation took less than a minute. That rubber ball grips my device firmly even on rough roads, and the 0.56" size feels sturdier than the plastic ones I've used before.

The rubber ball on this base is surprisingly grippy, which makes it hold my device rock-solid even on bumpy roads. The diamond plate feels sturdy, and the 1.912" hole spacing lined up perfectly with my existing mount, so installation took about two minutes.