The small additional mirror provides a clear view of the rear of the bike. On a Longtail or Cargo bike, this means you can keep an eye on your children or any other cargo entering the blind spot of the main mirror's field of vision.The mirrors are mounted on ball-and-socket joints for optimum, constant adjustment over time, while the pivoting arm optimises positioning. The Espion E100 Cargo is mounted on the left-hand side of the handlebars.Key Features:No Blind Spots: Excellent visibility thanks to the double mirrorE-Bike friendly: On handlebars 22mm to 25.4mmStable and rigid mounting: The vision remains clear on tarmac roads. Long-lasting adjustmentDurability: Unbreakable chrome-plated ABS mirror. Arm swivels in the event of a fallParking mode: Mirror can be folded down and repositioned without adjustmentWeight: 169gMaterial: Chrome plated ABS