The GIVI Smartphone Navigation Holder is designed for handlebars with a tube diameter ranging from 8mm to 35mm. The S920M model can accommodate devices with the following dimensions: minimum dimensions of 112 x 52mm, maximum dimensions of 148 x 75mm, and a maximum thickness of 13mm. It is compatible with motorcycles, scooters, bicycles, quads, and snowmobiles. The holder allows for easy insertion and removal of your smartphone. Note: The holder is delivered without any accessories! Perfect for various types of vehicles, the GIVI GPS/Smartphone Holder ensures your device stays secure and accessible, whether you're navigating city streets or exploring rugged trails. With a robust design and universal compatibility, this holder is an essential accessory for tech-savvy riders who need reliable GPS and smartphone mounting solutions.