Compatible bicycle models and fit Applicable models: Focus Mares Rival 1 O1E Paralane Paralane 8.7 Paralane2. Fits handlebars with a diameter of 22–32 mm. Please measure your handlebar diameter before . Can be mounted on either side using the included nonslip rubber gaskets and screws. construction and materials Built to last: ABS shell, tough aluminium tubing, antislip rubber base, and glass mirror. The ABS shell is resistant to impact and wear, the thickened aluminium tube is durable and deformationresistant, and the glass lens provides a broad view. The antislip base increases friction for secure mounting. Clear, wide field of view Wideangle rear view: Convex glass lens delivers a definition, wideview image with no blind spots, allowing you to monitor vehicles, cyclists, and pedestrians behind you. Glare surface maintains a crisp reflection in diverse lighting conditions, enhancing safety for commuting, touring, or mountain riding. 360degree adjustability and quick setup Flexible positioning: Fully rotatable mirror head and bendable aluminium support rod let you set the viewing angle. Bend or rotate to suit your height, riding posture, or terrain for rear visibility without turning your head. Easy installation: Quick to install and remove in minutes, with no special tools required.