RAM Quick-Grip™ complete phone holder set with spring insert can be easily installed on handlebars with a diameter of 0.5″-1.25″ v. beak. Thanks to the RAM Quick-Grip™ spring cradle design, it can safely hold countless types and sizes of mobile phones and small electronic devices. The adjustable arms on the sides of the cradle protect the phone from slipping out, while the spring-loaded claws on the bottom and top provide a secure hold and easy insertion and removal.