2 Pieces 18650 battery to 26650 Adaptor Converter adapter 18650 tube for 26650 led flashlight torch|battery led tube|battery tubetube house - AliExpress
Uxcell 18650 Battery Protective Sleeve, Battery Tube Adapter, Battery Holder Converter for 26650 LED Flashlight 12 Pcs - Walmart.com
Buy Blue POM 18650 Battery Adapter Tube for 20700 / 21700 Battery Mod
Wejoytech - New 18650-20700 battery adapter from Wejoytech: * It can be used for all box/mod/kit etc; * Easy to take and use for your devices; Maybe you need this item for
Amazon.com: LampVPath 6PCS 18650 Battery Protective Sleeve, 18650 Battery Spacer, 18650 Battery Holder Converter for 18650 Battery (Batteries are not included) - 6 Pack : Electronics
Surefire 18650 USB Rechargeable Battery | Surefire Distributor
18650 To 21700 Battery Adapter For Astrolux FT01 / FT02 / FT03 LED Flashlight DIY 18650 Adaptor Holder – Alexnld.com