Easily mount your phone with the Ram Mount Torque handlebar and rail mounting base Accommodates bars 3/4" - 1" in diameter with the dynamic X-Grip for phones The mount utilizes nylon-insert locknuts to prevent loosening in high vibration environments This low-profile mount is the perfect way to secure your personal electronics and small accessories in any high-vibration environment The included X-Grip cradle has a clean and clever spring loaded, four leg design that sports great holding power without hiding your phone behind foam pads and plastic Cradle expands to fit devices 1.75" - 4.5" Depth = 0.875" Manufacture's Limited Lifetime Warranty