Adult MTB Bar End Mountain Bicycle Mirror Outdoors Cycling Safety Rearview Bike Mirrors - 4 Colors Available Mounts onto bar end of handle bar Left right available Handlebar inside diameter range (17 to 22.5mm) is available, Mirror size: 7cm x 4.3cm (L x W) Material: shock resist mirror material + ABS plastic Wide view angle, well protect your safety in cycling Package content: 2 x Bicycle mirror + 1 x Spiral handle tool