Amazon.com: Battery Pouch Case for 4 x 18650, 20700 or 21700 Battery, Belt Holster for 18650 Battery with Carabiner, Zipper Pocket Memory Card Storage : Sports & Outdoors
Hohm Tech Security Battery Case (2x) - Black - IMR Batteries
LCD Display 14x18650/18700/20700/21700 Battery Case Power Bank Shell External Box without Battery Powerbank Protector|Battery Storage Boxes| - AliExpress
Shop 20700-21700 Dual Battery Case - Vaping Products - Glow Bar London
18650 20700 Battery Case Box Flask Container Holder 3D ABS - Etsy Sweden
Amazon.com : 18650 Battery Pouch with Zipper Pocket,18650 Battery Case for 8 x 18650 or 20700 or 21700, 18650 Battery Belt Holster with Carabiner : Electronics
KeepPower 20700/21700 Battery Case - Steamist
ODB Polar 20700 Battery Wraps - Pack of 4 - 18650 Battery Store