5 Duracell 379 Watch and Calculator Batteries(AG0, D379, LR521, JA, SR521SW, S56

The product is a pack of 5 Duracell 379 watch and calculator batteries, specifically AG0, D379, LR521, JA, SR521SW, and S56. These batteries are coin/button cell type, with a silver oxide chemical composition. They are designed for use in various consumer electronic devices, providing reliable power for watches and calculators. The Duracell brand is known for their quality and long-lasting batteries, making this pack a convenient and practical choice for everyday use.