Amazon.com : SmallRig Aluminum Power Bank Holder, Powerbank Mount Clamp Compatible with Width Range: 53 mm–84 mm (2.1–3.3 inches) and Thickness Range: 0 mm–18 mm (0–0.7 inch) Power Banks - BUB2336 : Electronics
Holder for Portable Power Banks BUB2336
SmallRig Holder For USB Power Banks Hands On Review
SmallRig Universal Power Bank Holder 2790 / SYNTEXSHOP.HU