- High quality construction: each rear view mirror is made of high quality nylon resin to prevent rainwater sticking, is shockproof and shatterproof, and weighs 71 g. It offers 360 degree rotation and 180 degree adjustment for flexible viewing. - Clear high resolution mirror: uses a high resolution acrylic lens with shatter-proof film for wide and clear vision. It is anti-glare and distortion-free for reliable rear visibility. - Stable and durable: convex acrylic and plastic lens are impact resistant with no cracks. The mirror stays intact even on downhill or rough riding conditions. - Upgraded design for better field of view: reinforced nylon with a fibre frame and waterproof rubber ring, using reliable plastics. This design provides a larger field of view than ordinary flat mirrors. - Practical use scenarios: ideal for urban commuting to monitor traffic behind you, for mountain biking on rough trails, and for downhill or high-vibration riding where durability matters.