1、36mm diameter mirrors with fine polished finish for larger and clearer reflection. 2、Mirror supports 360°rotation, easily adjusted to suit a variety of riding situations. 3、High-quality acrylic mirror and silicone sleeve tube, with nice durability, strong and not easy to age. 4、Easy to install to the bike handlebars, fixed with screws, firm and not easy to fall off. 5、Compact size, light and portable, easy to put into backpacks or pockets. Bicycle handlebar mirror is designed to provide cyclists with a clear and wide-angle view of the surroundings, and make riding safer. The mirror is 36mm in diameter, with a fine polished finish to provide a larger and clearer reflection. Support 360 ° rotation, can be applied to a variety of riding situations. Simple and easy to install, screwed in place, stable and safety. It is perfect for use on road or mountain bikes. Features: 36mm diameter mirrors with fine polished finish for larger and clearer reflection. Mirror supports 360°rotation, easily adjusted to suit a variety of riding situations. High-quality acrylic mirror and silicone sleeve tube, with nice durability, strong and not easy to age. Easy to install to the bike handlebars, fixed with screws, firm and not easy to fall off. Compact size, light and portable, easy to put into backpacks or pockets. Specifications: Color: Black Material: Acrylic & Silicone Caliber: 28-32mm / 32-36mm(optional) Item Size: 28-32mm: 32 * 32 * 49mm/ 1.3 * 1.3 * 1.9in 32-36mm: 36 * 36 * 49mm/ 1.4 * 1.4 * 1.9in Item Weight: 25g/ 0.9oz Package Size: 47 * 38 * 52mm/ 1.9 * 1.5 * 2.0in Package Weight: 35g/ 1.2oz Packing List: 1 * Rearview Mirror 1 * Rearview Mirror