Perfect size for holding four CR123a or two AA Batteries.  Two 17670's will also fit.  But they're not just for batteries!.. These containers are made of food safe PET plastic, and the screw-on cap seals watertight.  Store liquids, shampoo, medicines, sugar, spices, coffee, or anything else you want to take with you while camping or traveling.  Also great for storing a small kit of first aid supplies, sewing kit, matches, etc... the possibilities are endless!

The cap has a 1/2" hole for attaching a lanyard or carabiner to clip it to your pack or belt. 

TSA approved size for airline travel (holds about 2 ounces... the TSA limit for liquids carried onboard is 3 ounces.)

Approximately 165 mm in total length with cap.

Body tube is about 141 mm in length. 

Outside diameter is approximately 26 mm, Inside diameter is approximately 17 mm.  (Yes, these are thick-walled.. very tough!)

One Keep2Go container.

Batteries are shown for reference only.. not included.