1,Bicycle Bar Mount HD25 2,Bar Size:28 to 32mm 3,Hole Diameter for ... for Bike Light Model: Bicycle Bar Mount FEREI | HD25Specifications of HD25:Bar size: 28 to 32 mmHole diameter for the flashlight ... : 25mm Weight: 65gFeatures of HD25:Bicycle light Aluminum Mount instructions:* the top side adapt 25mm ... tight from 28mm to 32mm hand bar . Bicycle Bar Mount HD25