Illuminated Pocket Magnifier. Size: 3.5 x 2 inches. Battery included. Credit Card Size Pocket Magnifier with Built-In Bright White LED. Ultra-bright LED illuminated viewing with on/off button. Two standard CR1220 button cell batteries included. Fits in your Wallet. By D.M., A Leader in New and Innovative Gifts for every season, event, holiday and occassion.