Universal Bicycle Motorcycle Rearview Mirror with 360 Rotation and Adjustable Round/Elliptical Profile Universal compatibility: fits most bicycles and motorcycles. Features 360degree rotation and adjustable orientation for rear visibility from any riding position. Round/elliptical shape provides versatile viewing angles. Durable construction: composed of an ABS lens shell and an acrylic lens. Hardwearing, resistant to breakage, scratches, and stains. Delivers a wide field of view and a clear view of oncoming traffic and obstacles. HD antiglare for day and night: definition antiglare coating provides clear vision in bright daylight and at night. Maintains a wide field of view to identify oncoming vehicles and hazards early, contributing to safer riding. Expanded field of view: larger mirror surface compared with standard rearview mirrors. Significantly widens visibility, helping improve driving safety and road awareness. Practical use scenarios: City commuting and urban riding: monitor traffic and lane changes more effectively in dense traffic. Openroad highway riding: spot vehicles approaching from the sides earlier for safer lane changes and passes. Night or lowlight riding: antiglare performance helps maintain clear vision when glare from headlights or street lighting is present.