RAM Mount set fork stem Universal X-GRIP 7U features:
The RAM-B-176-A-UN7U consists of a fork stem base, short double socket arm and universal X-Grip® cradle. The included X-Grip® cradle has a clean and clever four leg design that sports great holding power without hiding your phone behind foam pads and plastic. The spring loaded X-Grip® cradle expands and contracts, allowing for a perfect custom fit of your cell phone.
Cradle Dimensions 10U – Large
Minimum Width = 1.75″ (Minimum Height = 5.5″)
Maximum Width = 4.5″ (Minimum Height = 3.25″)
Depth = 0.875″ .