RAM® 水平棘輪底座（附單球頭手臂）

The ratchet base’s locking mechanism is really solid—once I tightened it down, my tablet hasn’t budged on rough roads. I was surprised how easy it was to adjust the angle with just one hand.

The single socket arm clicks into place with a satisfying sound, and the ratchet base holds my GPS rock steady on bumpy roads. I mounted this on my motorcycle and it hasn't budged after hours of riding.

The ratchet base tightens down securely with a simple twist and holds my device firm on rough roads. I like that the arm can swivel out of the way when I don't need it.