It looks like you're describing a pack of 24 PKCELL R6P AA Batteries that are 1.5V carbon dry batteries, which are commonly used in various devices. These batteries are typically categorized as super heavy-duty, which suggests they are designed for long-lasting performance in low-drain devices.
MP3 players
Cameras
Flashlights
Electric shavers
Toys
CD players
Remote controls
Wireless mice
Keyboards
Additionally, the pack seems to mention AAA R03 batteries as well, which could also be part of the same product lineup for smaller devices.