Package includes: 2 rearview mirrors + mounting accessories + mounting screws + gift boxMaterial: new acrylic lensApplicable handlebars: pipe diameter below 32mmColor: blackProduct features: hose material, rearview mirror can be bent and adjusted at will[Material] Our bicycle rearview mirror is an acrylic convex mirror, inlaid in a black plastic shell, and can adjust different mirror angles. The support tube is made of plastic and high-quality aluminum, equipped with a 360-degree adjustable flexible support rod, which can be adjusted to any angle according to your needs. The rotating convex mirror can clearly show the road conditions behind you.[Size] The bicycle rearview mirror is rotatable and adjustable wide-angle. Use a 3-inch diameter wide-angle acrylic convex mirror to bring you a clearer and wider field of view and improve safety. The support tube is 7.2 inches, and the total size of this mirror is 14 inches.[Universal for bicycles] The bicycle rearview mirror handlebar rearview mirror is suitable for handlebars with a diameter of 0.88-1.2 inches, with a soft protective gasket inside, which is sturdy and durable. It is very suitable for mountain bikes, ATVs, recreational vehicles, electric bicycles, scooters, but not for road bikes.[Easy to install, sturdy and durable]: This bicycle rearview mirror safety adjustable rotating mirror provides you with a tool and four screws (one pair of short and one pair of long), they are small, we just need a little more patience to install it. High-quality aluminum tubes and rearview mirrors will shake slightly on bumpy roads.[Safety riding and purchase notes] Bicycle rearview mirrors on handlebars will improve your travel safety. All customers need to check your bicycle before buying, check the handlebar diameter, this is very important!2PCSABS