Cellet Heavy Duty All Weather Bicycle Holder for Smartphone - Black Phone holder provides all weather protection (snow, rain, dust, etc.) Internal foam pads and clear viewing window provides a secure fit and will not interfere with touchscreen functions Heavy duty handlebar grip has turn-lock knob to ensure a tight fit, holder with 360 degree rotation capability and turn-lock knob secures its position and provides flexibility Fits devices up to 5.38" long, 3" wide