Applicable bicycle models: Kona Kahuna Kapu Kikapu Kula Kula Deluxe Lana'i Lava Dome. Fits handlebars with a diameter of 22–32 mm; please measure the handlebar before . Can be mounted on either side using the included nonslip rubber gaskets and screws. Built to withstand daily riding, bumps and vibrations without loosening or breaking, while protecting your handlebars from scratches. materials: ABS shell, tough aluminium tubing, antislip rubber base, and glass mirror. The ABS shell resists impact and wear; the thickened aluminium tube is deformationresistant and durable; the glass lens provides a broad view; the antislip base increases friction. Clear and wide field of vision: Convex glass lens delivers an HD, wideangle rear view without blind spots, allowing you to monitor vehicles, cyclists and pedestrians behind you. The glare surface ensures a crisp reflection in varied light conditions, improving safety for commuting, touring or mountain biking. 360degree adjustable: Fully rotatable mirror head and bendable aluminium support rod allow adjustment to virtually any angle for the viewing position. Bend or rotate to suit height, riding posture or terrain, ensuring an rear view without turning your head. Installation and removal take minutes with no special tools required. Use scenarios: Useful for city commuting and urban riding to monitor traffic behind you; beneficial for road or gravel cycling during longdistance tours; valuable for mountain biking or offroad trail riding where rear visibility enhances safety.