Weltool BB11 Extension Tube – Dual 21700 Battery Tube for F11R Flashlight Stainless Use as shelter

Use as shelter

3x stitiching on stress points

clip-point carbon steel blade has a black powder coat that is durable in extreme environments

one for the boat

Without extender

Weltool BB11 Extension Tube – Dual 21700 Battery Tube for F11R Flashlight Stainless Use as shelterWeltool BB11 Extension Tube The Weltool BB11 (F11R ExtensionTube) is a flashlight accessory and dual battery extension tube made for the Weltool F11R flashlight. Installing the BB11 lets the F11R run two 21700 rechargeable lithium ion batteries (such as the Weltool INR21 60) for significantly longer runtime. Highlights Doubles battery capacity run two 21700 lithium ion batteries Made for the Weltool F11R flashlight Longer runtime for extended sessions