Don't get stuck with a dead battery at an important event!
Allows you to always have spare batteries handy.
Holds popular hearing-aid battery sizes including: 675, 312, 230, 13, 10 and 5
Features two compartments.
Each compartment measures 7/16" inch by 3/16" inch (11mm by 5mm)
The easy-open cover locks securely.
To access the two battery compartments, pull the battery tray out of the cover.
To close the case, slide the tray into the cover until it snaps into place.
Also doubles as a keychain.