bicycle handlebar bags for optimal viewing

Roswheel bicycle handlebar bags For: Bike or motorcycle
1.Universal Bike holder for mobile phone or Tablet PC.
2.Bike based innder diameter 18-28cm
3.bicycle backpacks adjustable rotation for 360°degrees
4.High quality ABS material phone holder
5.Extendable arm width 50-94mm
6.Easy install and release, easy adjustment for optimal viewing.