,GPS-devices between 3.5 and 6.5 inches wide. Smartphone never falls off from the holder. Flexible and 360-degree rotating support holder, can provide your ideal viewing angel, and can grip your phone vertically and sideways firmly.buckle structure phone holder so that your phone does not fall off from the holder, and with soft protective pads for your cell phone, can keep your phone in the bike sturdy; stable. Mainly made of light weight plastic, metal material: adjustable, stable, and the motorcycle phone mount universal for most motorcycle rear view mirrors. Easy installation: convenient devoid of tools installation makes it easy mount to any bicycle handlebar, only need to locate and lock nut.