This pack contains 5 GP LR54 1.5 Volt Alkaline Batteries, also known by their model number 189. These batteries are commonly used in watches, key fobs, car alarms, cameras, calculators, games, and toys. They are suitable for any device that requires LR54 batteries. The GP brand is a leading manufacturer of cell batteries. Please note that due to geographical locations, delivery to the Isle of Wight, Isle of Man, and Ireland may not be possible.