Lido's LM-1000 rail handlebar mount is compatible with devices or holders (sold separately) that feature the Single T-Slot mounting pattern. The rail bicycle/motorcycle mount fits on handlebars or tubing measuring up to 33mm in diameter and is easy to install with a Phillips screwdriver. Three handlebar spacer/adapter rings of different widths are included with the mount. Choose the appropriate size for optimum mounting to your handlebar. The mount’s swivel ball adapter head rotates 360°, providing the ultimate flexibility in viewing the device from any angle.