Allows the iOsphere Roll Cage Backing Plate to mount on any cage tubing, in any location, with the correct strap clamp for the correct tubing size Simple, secure and universal mounting system for your phone or device connects seamlessly to other Klock Werks iOmountsÖ products, including phone mounts for your quad, dirt bike, car, home, office and more Infinite rotational adjustment, sleek modern design and forward compatibility - If you upgrade to a new phone or GPS, you donÆt have to buy a new mounting system Purchase additional iOdisc disks to use multiple devices on the same mount. MOUNT PHONE OS 1.625"