A Highly stretchable design fits various power banks. (Perimeter 13cm - 18cm) X-Shaped Strap design allows you to place the power bank either horizontally or vertically. Compatible with all Bone's Bike Tie & Bike Tie Pro Series.
Step 1. Mount the power strap to the power bank.Step 2. Thread the grip of bike phone holder into the hole of power strap to fasten it.