What you get: you get 2pcs bicycle rearview mirrors, which can help you get a clear view of the road conditions behind you so that you can avoid any traffic accidents, reducing the accident rate to ensure your safety while cycling. The safe rearview mirror is about 2.76 inches/7 cm long, 1.97 inches/5 cm wide, please confirm the size before purchasing. Flexible 360 Degree Adjustment: Adjustable rotatable steering mirror can rotate 360 degrees, which can be adjusted to any direction you need, helping you capture the overall road condition in different directions rather than just the condition behind you, reminding you of the danger from different directions Quality and Strong Material: The bicycle rearview mirror is made of durable acrylic convex mirror, ABS and PVC material, waterproof, firm for a long service life; It can stay in good condition after being exposed to strong sunshine and heavy rain, giving you a clear image even in bad weather. Tool-free installation: the bicycle rearview mirror is equipped with a non-slip adjustable rubber buckle that can be attached to the handlebar with bare hands, no tools required; Just install the rubber cords on the handlebar. And suitable for the handlebar with diameter 0.59-1.18 inch/15-30 mm; It is also easy for you to remove the mirror from the handlebar when you don't need them; Please check the product size before purchasing. Universal adaptability: the shockproof acrylic convex mirror can be applied to most handlebars of conventional bicycles tightly, such as mountain road bike e-bike, MTB bike, motorcycle, electric scooter, etc.